SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES - Additional Information (Detail)		12 Months Ended
	Feb. 11, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) profile segment	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Jan. 31, 2022 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2018 USD ($)	Jul. 31, 2017 USD ($)
Significant Accounting Policies [Line Items]
Number of operating segments | segment		3
Number of client demand profiles | profile		3
Deferred employer payroll taxes		$ 14,100,000
Selling, general and administrative expenses		272,869,000	$ 260,920,000	$ 328,214,000
Deferred payroll related expenses and taxes		3,200,000
Deferred tax assets, gross		119,776,000	90,518,000
Valuation allowance		89,191,000	53,417,000			$ 900,000
Deferred tax liabilities		33,978,000	34,686,000
Unrecognized tax benefits		1,285,000	1,610,000	1,547,000			$ 1,749,000
Workers compensation our self-insured retention		1,000,000
Automobile liability self-insured retention		1,000,000
General liability claims we have an effective self-insured retention		1,000,000
General liability claims, deductible per occurrence		2,000,000
Medical claims, our self-insured retention		350,000
Environmental liability claims, our self-insured retention		1,000,000
Accrued capital expenditures		4,100,000	1,200,000	$ 4,000,000
Subsequent Event
Significant Accounting Policies [Line Items]
Deferred employer payroll taxes					$ 7,000,000
Subsequent Event | PIPE Shares
Significant Accounting Policies [Line Items]
Consideration received from sale of stock	$ 10,000,000
Shares issued (in shares) | shares	11,904,762
Price per share (in dollars per share) | $ / shares	$ 0.84
COVID-19
Significant Accounting Policies [Line Items]
Operating expenses		6,200,000
Selling, general and administrative expenses		1,500,000
Convertible debt
Significant Accounting Policies [Line Items]
Debt, face amount		$ 93,100,000						$ 230,000,000
Interest rate		5.00%						5.00%
Line of Credit | Revolving Credit Facility | Subsequent Event
Significant Accounting Policies [Line Items]
Borrowing capacity	$ 130,000,000
Line of Credit | Bridge Loan | Subsequent Event
Significant Accounting Policies [Line Items]
Borrowing capacity	35,000,000
Line of Credit | Letter of Credit | Subsequent Event
Significant Accounting Policies [Line Items]
Borrowing capacity	26,000,000
Secured Debt | Subsequent Event
Significant Accounting Policies [Line Items]
Debt, face amount	55,000,000
Secured Debt | Delayed Draw Term Loan | Subsequent Event
Significant Accounting Policies [Line Items]
Debt, face amount	35,000,000
Secured Debt | Delayed Draw Term Loan | Subsequent Event | Corre
Significant Accounting Policies [Line Items]
Debt, face amount	$ 10,000,000
Significant Observable Inputs (Level 2) | Convertible debt
Significant Accounting Policies [Line Items]
Fair value of convertible senior notes		$ 84,000,000	$ 91,900,000