Fair Value Measurements - Financial Instruments that were not Measured at Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 16, 2021	Jun. 08, 2021	Dec. 31, 2020
Workforce Solutions Group, Inc.
Fair Value, Option, Quantitative Disclosures [Line Items]
Earnout liabilities			$ 15,000
Selected, Inc
Fair Value, Option, Quantitative Disclosures [Line Items]
Earnout liabilities		$ 1,500
Level 2 | Carrying Amount | Workforce Solutions Group, Inc.
Fair Value, Option, Quantitative Disclosures [Line Items]
Earnout liabilities	$ 15,000			$ 0
Level 2 | Carrying Amount | Selected, Inc
Fair Value, Option, Quantitative Disclosures [Line Items]
Earnout liabilities	1,500			0
Level 2 | Fair Value | Workforce Solutions Group, Inc.
Fair Value, Option, Quantitative Disclosures [Line Items]
Earnout liabilities	15,000			0
Level 2 | Fair Value | Selected, Inc
Fair Value, Option, Quantitative Disclosures [Line Items]
Earnout liabilities	1,500			0
Senior Secured Asset-Based Loan | Level 2 | Carrying Amount
Fair Value, Option, Quantitative Disclosures [Line Items]
Senior Secured Asset-Based Loan	9,200			53,408
Senior Secured Asset-Based Loan | Level 2 | Fair Value
Fair Value, Option, Quantitative Disclosures [Line Items]
Senior Secured Asset-Based Loan	9,200			53,408
Earnout Notes Payable | Level 2 | Carrying Amount
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt instrument	2,426			4,851
Earnout Notes Payable | Level 2 | Fair Value
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt instrument	2,426			4,851
Term Loan | Level 2 | Carrying Amount
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt instrument	174,312			0
Term Loan | Level 2 | Fair Value
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt instrument	$ 174,845			$ 0