Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Cash Flows [Abstract]
Net loss	$ (12,414)	$ (8,418)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	3,660	4,312
Deferred income taxes	16	17
Bad debt expense and other reserves	160	232
Stock-based compensation	3,498	6,385
Increase in the fair value of contingent consideration liability	0	31
Amortization of lease right-of-use assets	1,097	1,068
(Gain) loss from equity method investment	(1,749)	329
Other noncash expense	315	125
Changes in operating assets and liabilities:
Accounts receivable	1,442	4,383
Prepaid expenses and other assets	(149)	2,205
Accounts payable	(249)	717
Accrued employee expenses	(1,529)	(1,745)
Operating lease liabilities	(1,383)	(1,253)
Accrued expenses and other current liabilities	(180)	(2,607)
Other liabilities	0	(302)
Net cash (used in) provided by operating activities	(7,465)	5,479
Cash flows from investing activities
Purchase of property and equipment	(3,379)	(2,816)
Proceeds from Sale of Equity Method Investments	12,800	0
Net cash provided by (used in) investing activities - continuing operations	9,421	(2,816)
Net cash provided by investing activities - discontinued operations	0	7,500
Net cash provided by investing activities	9,421	4,684
Cash flows from financing activities
Proceeds from exercise of common stock options	163	567
Taxes paid related to net share settlement of equity awards	(1,024)	(1,642)
Payments for the repurchase of common stock	(11,530)	(7,829)
Net cash used in financing activities	(12,391)	(8,904)
Net (decrease) increase in cash and cash equivalents	(10,435)	1,259
Cash and cash equivalents at beginning of period	234,782	274,573
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	246	347
Capitalized assets included in accounts payable, accrued employee expenses and other accrued expenses	$ 588	$ 585