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Debt and Other Financing - Additional Information (Detail)

v3.21.2
Debt and Other Financing - Additional Information (Detail) - USD ($)
1 Months Ended 6 Months Ended 12 Months Ended
Apr. 28, 2021
Feb. 02, 2021
Dec. 31, 2020
Oct. 31, 2019
Nov. 13, 2018
Jun. 27, 2018
Oct. 19, 2017
Apr. 30, 2020
Oct. 31, 2019
Jun. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Feb. 28, 2021
Feb. 18, 2021
Feb. 03, 2021
Jan. 01, 2020
Debt Instrument [Line Items]                                
Long-term Debt, Gross     $ 103,435,000             $ 180,259,000 $ 103,435,000 $ 123,044,000        
Proceeds from Issuance of Long-term Debt                     3,600,000 107,640,000        
Capital stock shares authorized share capital                           1,176,556,156    
Common stock, shares authorized                           1,000,000,000    
Fair Value, Inputs, Level 2 [Member]                                
Debt Instrument [Line Items]                                
Long-term Debt, Fair Value     79,700,000               79,700,000 63,900,000        
Stock Purchase Agreement [Member]                                
Debt Instrument [Line Items]                                
Percentage Of Equity Interest Subject For Sale                               100.00%
Seahawk SPV Investment L L C [Member] | Warrants To Purchase Common Stock [Member]                                
Debt Instrument [Line Items]                                
Class Of Warrant Or Right Number Of Securities Issued During Period       13,500,000                        
Intelsat Jackson Holdings S A [Member] | Warrants To Purchase Common Stock [Member]                                
Debt Instrument [Line Items]                                
Class Of Warrant Or Right Number Of Securities Issued During Period       20,200,000                        
Jason And Marian Joh Andrews. [Member] | Common Stock [Member]                                
Debt Instrument [Line Items]                                
Stock Repurchased During Period, Shares         11,500,000                      
Seahawk L S A [Member] | Loan From Related Party [Member]                                
Debt Instrument [Line Items]                                
Line of Credit Facility, Maximum Amount Outstanding During Period       $ 31,600,000                        
Seahawk L S A [Member] | Loan From Related Party [Member] | Seahawk SPV Investment L L C [Member]                                
Debt Instrument [Line Items]                                
Line of Credit Facility, Maximum Amount Outstanding During Period       17,600,000                        
Seahawk L S A [Member] | Loan From Related Party [Member] | Investor [Member]                                
Debt Instrument [Line Items]                                
Line of Credit Facility, Maximum Amount Outstanding During Period       14,000,000.0                        
Intelsat Facility [Member] | Loan From Related Party [Member] | Intelsat Jackson Holdings S A [Member]                                
Debt Instrument [Line Items]                                
Debt Instrument Maximum Borrowing Threshold Limit       110,000,000.0         $ 110,000,000.0              
Intelsat Facility [Member] | Loan From Related Party [Member] | Intelsat Jackson Holdings S A [Member] | Commercial Credit Facility [Member]                                
Debt Instrument [Line Items]                                
Line of Credit Facility, Maximum Borrowing Capacity       25,000,000.0         25,000,000.0              
Delayed Draw Term Loan [Member] | Seahawk L S A [Member] | Loan From Related Party [Member] | Seahawk SPV Investment L L C [Member]                                
Debt Instrument [Line Items]                                
Debt principal amount             $ 50,000,000.0                  
Debt Instrument, Description of Variable Rate Basis             six                  
Related Party Loans [Member]                                
Debt Instrument [Line Items]                                
Long-term Debt, Gross     83,737,000             82,987,000 83,737,000 80,946,000        
Related Party Loans [Member] | Seahawk L S A [Member] | Loan From Related Party [Member]                                
Debt Instrument [Line Items]                                
Principal Amount Subject To Rolling       17,600,000         17,600,000              
Interest Amount Subject To Rolling       $ 800,000         800,000              
Related Party Loans [Member] | Two Thousand And Nineteen Omnibus Agreement [Member] | Series C Redeemable Convertible Preferred Stock [Member]                                
Debt Instrument [Line Items]                                
Debt Instrument, Convertible, Type of Equity Security       other than the Seahawk LSA debt held by Seahawk, all debt under the Seahawk LSA converted into shares of Series C redeemable convertible preferred stock                        
Related Party Loans [Member] | Intelsat Facility [Member] | Loan From Related Party [Member] | Intelsat Jackson Holdings S A [Member]                                
Debt Instrument [Line Items]                                
Long-term Debt, Gross     $ 71,200,000               71,200,000          
Long Term Debt Amount Of Folding       $ 18,400,000         $ 18,400,000              
Long-term Debt, Maturity Date       Oct. 31, 2024         Oct. 31, 2024              
Debt Instrument, Frequency of Periodic Payment       Thereafter, interest is payable in cash semi-annually in arrears commencing on May 1, 2023                        
Debt Instrument, Collateral       The Intelsat Facility is secured by substantially all of the Company’s assets and is guaranteed by the Company’s subsidiaries; such guarantee is secured by substantially all of the assets of the subsidiaries                        
Debt Instrument, Covenant Compliance     There are no covenants tied to financial metrics and the Company was in compliance with the Intelsat Facility as of December 31, 2020.                          
Debt Issuance Costs, Net     $ 1,800,000               1,800,000          
Long-term Debt, Current Maturities     0               0          
Related Party Loans [Member] | Intelsat Facility [Member] | Loan From Related Party [Member] | Intelsat Jackson Holdings S A [Member] | Applicable From Year One To Three [Member]                                
Debt Instrument [Line Items]                                
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate       4.00%         4.00%              
Related Party Loans [Member] | Intelsat Facility [Member] | Loan From Related Party [Member] | Intelsat Jackson Holdings S A [Member] | Applicable Through Year Four [Member]                                
Debt Instrument [Line Items]                                
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate       9.00%         9.00%              
Related Party Loans [Member] | Intelsat Facility [Member] | Loan From Related Party [Member] | Intelsat Jackson Holdings S A [Member] | Applicable Through Year Five [Member]                                
Debt Instrument [Line Items]                                
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate       10.00%         10.00%              
Secured Term Loan [Member] | Intelsat Facility [Member] | Loan From Related Party [Member] | Intelsat Jackson Holdings S A [Member]                                
Debt Instrument [Line Items]                                
Long-term Debt, Gross       $ 50,000,000.0         $ 50,000,000.0              
Commercial Paper [Member] | Andrews Notes [Member] | Loan From Related Party [Member] | Jason [Member]                                
Debt Instrument [Line Items]                                
Notes Payable, Related Parties         $ 6,200,000                      
Commercial Paper [Member] | Andrews Notes [Member] | Loan From Related Party [Member] | Marian Joh Andrews [Member]                                
Debt Instrument [Line Items]                                
Notes Payable, Related Parties         6,200,000                      
Commercial Paper [Member] | Andrews Notes [Member] | Loan From Related Party [Member] | Jason And Marian Joh Andrews. [Member]                                
Debt Instrument [Line Items]                                
Long-term Debt, Gross     12,500,000   $ 12,500,000           12,500,000          
Debt Instrument, Frequency of Periodic Payment         annually                      
Notes Payable, Related Parties $ 1,800,000                              
Debt Instrument, Periodic Payment, Interest         $ 25,000.0                      
Related Party Transaction, Rate         6.00%                      
Repayments of Related Party Debt 800,000                              
Paycheck Protection Program Loan [Member]                                
Debt Instrument [Line Items]                                
Long-term Debt, Gross     $ 3,600,000             $ 3,600,000 $ 3,600,000          
Debt Instrument, Interest Rate, Effective Percentage     1.86%             1.86% 1.86%          
Paycheck Protection Program Loan [Member] | Covid Nineteen [Member]                                
Debt Instrument [Line Items]                                
Debt principal amount               $ 0                
Debt Instrument, Covenant Compliance     There are no covenants tied to financial metrics and the Company was in compliance with the PPP loan as of December 31, 2020.                          
Proceeds from Issuance of Long-term Debt               $ 3,600,000                
Debt Instrument, Payment Terms               The amount of loan forgiveness will be reduced if the borrower terminates employees or reduces salaries during the forgiveness period. Any unforgiven portion of the PPP loan would be primarily payable over two years, with certain amounts due over an incremental three years, at an interest rate of 1%, with a deferral of payments for the first six months                
Debt Instrument, Interest Rate, Effective Percentage               1.00%                
Term Loan [Member] | Amended And Restated Loan And Security Agreement [Member] | S V B [Member]                                
Debt Instrument [Line Items]                                
Debt principal amount           $ 15,000,000.0                    
Revolving Credit Facility [Member] | S V B [Member]                                
Debt Instrument [Line Items]                                
Long-term Debt, Gross     $ 16,100,000               $ 16,100,000          
Debt Instrument, Covenant Compliance     There are no covenants tied to financial metrics and the Company was in compliance with the SVB line of credit as of December 31, 2020                          
Current portion of long-term debt     $ 28,600,000               28,600,000          
Line of Credit Facility, Collateral                 After amending the line of credit in October 2019, the line of credit is secured by certain pledged cash collateral accounts, guaranteed by the Company’s subsidiaries and guaranteed by certain of its investors              
Revolving Credit Facility [Member] | Amended And Restated Loan And Security Agreement [Member] | S V B [Member]                                
Debt Instrument [Line Items]                                
Line of Credit Facility, Maximum Borrowing Capacity           $ 17,000,000.0                    
Line of Credit Facility, Interest Rate Description           The interest rate on the revolving line of credit is the current prime rate                    
Line of Credit Facility, Expiration Date           Jun. 30, 2021                    
Secured Debt [Member]                                
Debt Instrument [Line Items]                                
Long-term Debt, Gross                       $ 26,000,000        
Secured Debt [Member] | Bridge Agreement Loan [Member]                                
Debt Instrument [Line Items]                                
Long-term Debt, Gross       $ 26,000,000.0         $ 26,000,000.0              
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate       9.00%         9.00%              
Debt Instrument, Frequency of Periodic Payment       semi-annually and in arrears commencing May 1, 2020                        
Debt Instrument, Collateral       The Bridge Loan was secured by substantially all of the Company’s assets and guaranteed by the Company’s subsidiaries, and such guarantee was secured by substantially all of the assets of the subsidiaries                        
Long Term Debt Percentage Bearing Fixed Interest Rate Percentage Rate Payable In Cash       6.00%         6.00%              
Long Term Debt Percentage Bearing Fixed Interest Rate Percentage Rate On Maturity       3.00%         3.00%              
2021 Bridge Notes [Member] | 2021 Bridge Financing [Member]                                
Debt Instrument [Line Items]                                
Debt principal amount   $ 60,000,000.0                         $ 18,100,000  
Long-term Debt, Maturity Date   Apr. 30, 2025                            
Debt Instrument Convertible Percentage Of Merger Stock Price   80.00%                            
2021 Bridge Notes [Member] | 2021 Bridge Financing [Member] | Debt First Tranche [Member]                                
Debt Instrument [Line Items]                                
Debt principal amount                         $ 24,200,000      
Percentage of Warrants Issued Entity Fully Diluted Share Capital                             0.14%  
Threshold Minimum Investor Investment for Which Warrants are Issued                             $ 1,000,000.0  
Percentage of Common Stock and Warrants Issued of Entity Fully Diluted Share Capital                             3.50%  
2021 Bridge Notes [Member] | 2021 Bridge Financing [Member] | Debt Second Tranche [Member]                                
Debt Instrument [Line Items]                                
Debt principal amount                         $ 40,000,000.0 $ 40,000,000.0 $ 1,900,000  
Proceeds from rights offering                   $ 500,000            
Number of Common Stock Issued Per Dollar Committed   7                            
2021 Bridge Notes [Member] | 2021 Bridge Financing [Member] | Debt First And Second Tranche [Member]                                
Debt Instrument [Line Items]                                
Proceeds from other long term debt                   58,600,000            
Related Party Loan Paycheck Protection Programme Loan And Line Of Credit [Member] | Fair Value, Inputs, Level 3 [Member]                                
Debt Instrument [Line Items]                                
Long-term Debt, Fair Value     $ 79,700,000             $ 88,500,000 $ 79,700,000          
Subsequent Event [Member] | Commercial Paper [Member] | Andrews Notes [Member] | Loan From Related Party [Member] | Jason And Marian Joh Andrews. [Member]                                
Debt Instrument [Line Items]                                
Notes Payable, Related Parties 1,800,000                              
Repayments of Related Party Debt $ 800,000