CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities
Net (loss) income	$ (12,142)	$ (55,943)	$ (15,717)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	12,671	14,075	11,780
Provision for allowances	4,269	3,243	5,974
Deferred income tax (benefit) expense	(932)	31,159	(3,410)
Non-cash lease expense	3,547	4,989	0
Impairment charges	16,248	16,306	22,423
Loss on early extinguishment of debt	0	1,978	79
Equity compensation	5,403	3,396	3,575
Other non-cash costs	990	513	3,679
Changes in operating assets and liabilities:
Accounts receivable	(4,745)	(6,642)	2,820
Prepaid expenses and other assets	(2,083)	(1,574)	(2,514)
Accounts payable and accrued expenses	7,239	(1,308)	(7,095)
Operating lease liabilities	(5,872)	(5,820)	0
Other	2,611	1,170	(597)
Net cash provided by operating activities	27,204	5,542	20,997
Cash flows from investing activities
Acquisitions, net of cash acquired	0	0	(1,930)
Acquisition-related settlements	0	0	(151)
Purchases of property and equipment	(4,615)	(2,940)	(4,597)
Net cash used in investing activities	(4,615)	(2,940)	(6,678)
Cash flows from financing activities
Principal payments on term loan	0	(83,876)	(16,124)
Principal payments on note payable	(2,426)	0	0
Borrowings under revolving credit facility	0	5,000	0
Repayments on revolving credit facility	0	(5,000)	0
Debt issuance costs	(81)	(2,058)	(308)
Proceeds under Senior Secured Asset-Based revolving credit facility	0	76,640	0
Borrowings under Senior Secured Asset-Based revolving credit facility	420,334	71,934	0
Repayments on Senior Secured Asset-Based revolving credit facility	(437,900)	(77,600)	0
Cash payments to noncontrolling shareholder	(1,153)	(1,573)	(1,194)
Stock repurchase and retirement	0	0	(5,000)
Other	(784)	(1,066)	(1,141)
Net cash used in financing activities	(22,010)	(17,599)	(23,767)
Effect of exchange rate changes on cash	(11)	10	(70)
Change in cash and cash equivalents	568	(14,987)	(9,518)
Cash and cash equivalents at beginning of year	1,032	16,019	25,537
Cash and cash equivalents at end of year	1,600	1,032	16,019
Supplemental disclosure of cash flow information:
Interest paid	2,666	4,554	6,340
Income taxes paid	$ 612	$ 555	$ 1,043