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Related Party and Former Parent Transactions (Details) - USD ($) $ in Thousands			3 Months Ended			9 Months Ended
	May 15, 2021	Jan. 21, 2021	Sep. 30, 2021	Jun. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Related Party and Former Parent Transactions
Issuance of common stock, net (in shares)		131,564
Immediate Family Member of Management or Principal Owner
Related Party and Former Parent Transactions
Revenue from Related Parties			$ 273		$ 546	$ 772	$ 1,075
Due from Related Parties			0			0		$ 100
Affiliated Entity
Related Party and Former Parent Transactions
Issuance of common stock, net (in shares)	177,206,779
Stock Retired During Period, Shares	177,206,779			177,206,779
Affiliated Entity \| Onex Vendor
Related Party and Former Parent Transactions
Outstanding liability			9			9		4
Affiliated Entity \| Baring Vendor One
Related Party and Former Parent Transactions
Consulting fee in operating expenses			207		259	675	519
Outstanding liability			150			150		237
Affiliated Entity \| Leonard Green 1
Related Party and Former Parent Transactions
Consulting fee in operating expenses			346			974
Outstanding liability			13			13		0
Affiliated Entity \| Leonard Green 2
Related Party and Former Parent Transactions
Consulting fee in operating expenses			7,573			23,058
Outstanding liability			0			0		0
Affiliated Entity \| Leonard Green 3
Related Party and Former Parent Transactions
Consulting fee in operating expenses			2,096			4,077
Outstanding liability			0			0		1,995
Affiliated Entity \| Customer one
Related Party and Former Parent Transactions
Revenue from Related Parties			32			95
Due from Related Parties			0			0		31
Affiliated Entity \| Customer two
Related Party and Former Parent Transactions
Revenue from Related Parties			9,945			30,591
Due from Related Parties			69,431			69,431		54,656
Affiliated Entity \| Customer three
Related Party and Former Parent Transactions
Revenue from Related Parties			55			125
Due from Related Parties			0			0		$ 264
Affiliated Entity \| Onex Customer
Related Party and Former Parent Transactions
Revenue from Related Parties			395		$ 600	1,203	$ 1,536
Affiliated Entity \| Onex
Related Party and Former Parent Transactions
Due from Related Parties			$ 745			$ 745