Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
CURRENT ASSETS:
Cash and cash equivalents	$ 192,397	$ 66,633
Accounts receivable (net of allowance for doubtful accounts of $1,861 and $2,255 as of December 31, 2020 and September 30, 2021, respectively)	119,812	80,381
Insurance receivable		750
Prepaid expenses	8,658	7,273
Other current assets	6,701	7,845
Total current assets	327,568	162,882
Property and equipment, net	10,414	14,130
Goodwill	830,679	831,800
Intangible assets, net	254,101	300,544
Other noncurrent assets, net	7,032	6,762
TOTAL ASSETS	1,429,794	1,316,118
CURRENT LIABILITIES:
Accounts payable	27,192	14,708
Litigation settlement obligation		750
Accrued expenses	52,837	35,899
Current portion of long-term debt	6,461	13,147
Other current liabilities	19,791	21,488
Total current liabilities	106,281	85,992
Long-term debt, net	599,202	602,306
Deferred income taxes	15,895	29,400
Other liabilities	7,171	15,236
Total liabilities	728,549	732,934
COMMITMENTS AND CONTINGENCIES (NOTE 11)
STOCKHOLDERS' EQUITY:
Preferred stock ($0.01 par value; 100,000,000 shares authorized; no shares issued or outstanding)
Common stock ($0.01 par value; 239,600,000 shares authorized, 88,554,962 shares issued and outstanding as of December 31, 2020; 1,000,000,000 shares authorized, 95,787,780 shares issued and outstanding as of September 30, 2021)	68	1
Additional paid-in capital	911,233	770,714
Common stock held in treasury (107,820 shares as of December 31, 2020 and September 30, 2021)	(897)	(897)
Accumulated deficit	(208,922)	(187,691)
Accumulated other comprehensive income (loss)	(237)	1,057
Total stockholders' equity	701,245	583,184
Liabilities and Equity	$ 1,429,794	$ 1,316,118