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Summary of Significant Accounting Policies - Reconciliation of the Net Earnings (Loss) per Common Share (Detail)

v3.21.2
Summary of Significant Accounting Policies - Reconciliation of the Net Earnings (Loss) per Common Share (Detail) - USD ($)
3 Months Ended 5 Months Ended 6 Months Ended 11 Months Ended 12 Months Ended
Dec. 31, 2020
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Jun. 30, 2020
Jun. 30, 2021
Jun. 21, 2020
Dec. 31, 2020
Dec. 31, 2019
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]                  
Net Earnings         $ (6,238,000) $ (22,795,000) $ (1,619,000) $ (16,946,000) $ (3,216,000)
Net Loss         $ (4,972,000) $ (23,575,000) $ (1,334,000) $ (14,374,000) $ (3,357,000)
Basic and diluted         100 100   100  
Earnings/Income/Loss/Basic and Diluted         $ (50) $ (236)   $ (144)  
CIK_0001819810_Genesis Park Acquisition Corp [Member]                  
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]                  
Interest Income   $ 18,185   $ 10,751   $ 46,643      
Net Earnings   (707,636)   (39,657)   (921,610)      
Net Loss   (5,752,200) $ 260,149 $ (12,261,549)   (5,492,051)      
Class A Redeemable Ordinary Shares [Member] | CIK_0001819810_Genesis Park Acquisition Corp [Member]                  
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]                  
Interest Income $ 10,751 18,185       46,643      
Net Earnings $ 10,751 $ 18,185       $ 46,643      
Basic and diluted 16,377,622 16,377,622       16,377,622      
Earnings/Income/Loss/Basic and Diluted $ 0.00 $ 0.00       $ 0.00      
Non Redeemable Class B Ordinary Shares [Member] | CIK_0001819810_Genesis Park Acquisition Corp [Member]                  
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]                  
Net Earnings $ (12,272,300)                
Net Loss $ (12,272,300) $ (5,770,385)       $ (5,538,694)      
Basic and diluted 3,827,271 4,094,406       4,094,406      
Earnings/Income/Loss/Basic and Diluted $ (3.20) $ (1.41)       $ (1.35)