CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Revenue	$ 272,750	$ 283,084
Costs and expenses:
Cost of revenue (exclusive of depreciation and amortization shown separately below)	13,895	14,252
Selling and marketing expense	197,462	195,538
General and administrative expense	34,989	32,082
Product development	12,468	10,963
Depreciation	3,718	3,378
Amortization of intangibles	11,312	13,757
Change in fair value of contingent consideration	797	(8,122)
Severance	0	158
Litigation settlements and contingencies	16	329
Total costs and expenses	274,657	262,335
Operating (loss) income	(1,907)	20,749
Other (expense) income, net:
Interest expense, net	(10,215)	(4,834)
Other income	40,072	0
Income before income taxes	27,950	15,915
Income tax (expense) benefit	(8,638)	3,061
Net income from continuing operations	19,312	18,976
Loss from discontinued operations, net of tax	(263)	(4,575)
Net income and comprehensive income	$ 19,049	$ 14,401
Weighted average shares outstanding:
Basic (in shares)	13,070	12,957
Diluted (in shares)	14,119	14,158
Income per share from continuing operations:
Basic (in dollars per share)	$ 1.48	$ 1.46
Diluted (in dollars per share)	1.37	1.34
Loss per share from discontinued operations:
Basic (in dollars per share)	(0.02)	(0.35)
Diluted (in dollars per share)	(0.02)	(0.32)
Net income per share:
Basic (in dollars per share)	1.46	1.11
Diluted (in dollars per share)	$ 1.35	$ 1.02