Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Statement of Cash Flows [Abstract]
Net loss	$ (100,546)	$ (22,537)
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	0	40
Net loss from continuing operations	(100,546)	(22,577)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	11,729	12,731
Goodwill impairment	59,775	0
Deferred income taxes	(2,661)	48
Bad debt expense and other reserves	421	286
Stock-based compensation	13,174	15,992
Increase in the fair value of contingent consideration liability	179	41
Amortization of lease right-of-use assets	3,031	3,211
(Gain) loss from equity method investment	(1,845)	953
Impairment of right-of-use assets and write-off and loss on disposal of finite-lived assets	0	1,666
Other noncash (gain) expense	(14)	313
Changes in operating assets and liabilities:
Accounts receivable	3,250	12,746
Prepaid expenses and other assets	(1,741)	477
Accounts payable	(2,538)	993
Accrued employee expenses	1,978	(1,099)
Operating lease liabilities	(4,036)	(3,877)
Accrued expenses and other current liabilities	(368)	(5,363)
Other liabilities	0	(364)
Net cash (used in) provided by operating activities - continuing operations	(20,212)	16,177
Net cash used in operating activities - discontinued operations	0	(180)
Net cash (used in) provided by operating activities	(20,212)	15,997
Cash flows from investing activities
Purchase of property and equipment	(8,332)	(8,056)
Proceeds from Sale of Equity Method Investments	15,745	0
Cash paid	(12,093)	0
Net cash used in investing activities - continuing operations	(4,680)	(8,056)
Net cash provided by investing activities - discontinued operations	0	6,484
Net cash used in investing activities	(4,680)	(1,572)
Cash flows from financing activities
Payment for Contingent Consideration Liability, Financing Activities	0	(2,214)
Proceeds from exercise of common stock options	179	1,369
Taxes paid related to net share settlement of equity awards	(2,422)	(4,286)
Payments for the repurchase of common stock	(25,103)	(31,943)
Net cash used in financing activities	(27,346)	(37,074)
Net decrease in cash and cash equivalents	(52,238)	(22,649)
Cash and cash equivalents at beginning of period	192,979	250,665
Cash and cash equivalents at end of period	245,217	273,314
Supplemental disclosures of non-cash activities
Stock-based compensation capitalized for software development	784	1,015
Capitalized assets included in accounts payable, accrued employee expenses and other accrued expenses	1,198	1,101
Changes in right-of-use assets for operating lease obligations	3,047	0
Changes in lease liabilities for operating lease obligations	$ 3,636	$ 0