Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
CURRENT ASSETS:
Cash and cash equivalents	$ 47,998	$ 66,633
Accounts receivable (net of allowance for doubtful accounts of $1,861 and $2,949 as of December 31, 2020 and 2021, respectively)	127,927	80,381
Insurance receivable	0	750
Prepaid expenses	12,510	7,273
Other current assets	11,563	7,845
Total current assets	199,998	162,882
Property and equipment, net	11,124	14,130
Goodwill	852,536	831,800
Intangible assets, net	297,146	300,544
Deferred income taxes	4,770	0
Other noncurrent assets, net	6,685	6,762
TOTAL ASSETS	1,372,259	1,316,118
CURRENT LIABILITIES:
Accounts payable	31,127	14,708
Legal settlement obligation payable	0	750
Accrued expenses	67,971	35,899
Current portion of long-term debt	6,461	13,147
Other current liabilities	24,361	21,488
Total current liabilities	129,920	85,992
Long-term debt, net	499,107	602,306
Deferred income taxes	28,584	29,400
Other liabilities	5,024	15,236
Total liabilities	662,635	732,934
COMMITMENTS AND CONTINGENCIES (NOTE 12)
STOCKHOLDERS’ EQUITY:
Preferred stock ($0.01 par value; 100,000,000 shares authorized; no shares issued or outstanding)	0	0
Common stock ($0.01 par value; 239,600,000 shares authorized and 88,554,962 shares issued and outstanding as of December 31, 2020; and 1,000,000,000 shares authorized and 95,854,795 shares issued and 95,746,975 shares outstanding as of December 31, 2021)	68	1
Additional paid-in capital	916,578	770,714
Common stock held in treasury (107,820 shares as of December 31, 2020 and 2021)	(897)	(897)
Accumulated deficit	(206,218)	(187,691)
Accumulated other comprehensive income	93	1,057
Total stockholders’ equity	709,624	583,184
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 1,372,259	$ 1,316,118