Consolidated Statements of Operations and Comprehensive Income (Loss) (unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenue	$ 183,822,000	$ 280,650,000	$ 680,798,000	$ 923,020,000
Cost of services	80,178,000	105,011,000	262,261,000	321,543,000
Gross profit	103,644,000	175,639,000	418,537,000	601,477,000
Operating expenses:
Sales and marketing	74,755,000	89,891,000	226,781,000	275,659,000
General and administrative	48,267,000	54,670,000	149,642,000	159,514,000
Impairment charges	0	0	0	222,000
Total operating expenses	123,022,000	144,561,000	376,423,000	435,395,000
Operating (loss) income	(19,378,000)	31,078,000	42,114,000	166,082,000
Other income (expense):
Other components of net periodic pension (cost) benefit	(1,902,000)	(3,928,000)	(3,888,000)	5,295,000
Other income (expense)	(876,000)	6,941,000	(1,242,000)	15,567,000
(Loss) income before income tax benefit (expense)	(37,287,000)	19,521,000	(10,927,000)	142,855,000
Income tax benefit (expense)	10,241,000	(6,241,000)	9,173,000	(38,062,000)
Net (loss) income	(27,046,000)	13,280,000	(1,754,000)	104,793,000
Other comprehensive income (loss):
Foreign currency translation adjustment, net of tax	(1,842,000)	(7,920,000)	(4,332,000)	(12,611,000)
Comprehensive (loss) income	$ (28,888,000)	$ 5,360,000	$ (6,086,000)	$ 92,182,000
Net (loss) income per common share:
Basic (in dollars per share)	$ (0.78)	$ 0.39	$ (0.05)	$ 3.06
Diluted (in dollars per share)	$ (0.78)	$ 0.37	$ (0.05)	$ 2.86
Weighted-average shares used in computing basic and diluted net (loss) income per common share:
Basic (in shares)	34,848,899	34,269,274	34,619,794	34,289,333
Diluted (in shares)	34,848,899	35,811,473	34,619,794	36,698,395
Nonrelated Party
Other income (expense):
Interest expense	$ (15,131,000)	$ (13,720,000)	$ (47,911,000)	$ (40,584,000)
Related Party
Other income (expense):
Interest expense	$ 0	$ (850,000)	$ 0	$ (3,505,000)