UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenue:
Service revenue and other	$ 64,414	$ 59,691
Operating expenses:
Cost of services exclusive of depreciation and amortization	26,339	23,424
Selling, general and administrative	23,771	20,153
Restructuring expense	0	618
Depreciation and amortization	14,684	13,266
Total operating expenses	64,794	57,461
Operating income (loss)	(380)	2,230
Other income (expense):
Other income (expense), net	(170)	1,600
Income (loss) from continuing operations before income taxes	(550)	3,830
Income tax expense	53	885
Income (loss) from continuing operations	(603)	2,945
Total income from discontinued operations, net of tax	0	48,472
Net income (loss)	(603)	51,417
Other comprehensive income:
Unrealized income on interest rate hedge, net of tax	0	773
Comprehensive income (loss)	$ (603)	$ 52,190
Net income (loss) per share, basic and diluted:
Basic - Income (loss) from continuing operations (in dollars per share)	$ (0.01)	$ 0.06
Basic - Income from discontinued operations, net of tax (in dollars per share)	0	0.97
Basic net income (loss) per share (in dollars per share)	(0.01)	1.03
Diluted - Income (loss) from continuing operations (in dollars per share)	(0.01)	0.06
Diluted - Income from discontinued operations, net of tax (in dollars per share)	0	0.97
Diluted net income (loss) per share (in dollars per share)	$ (0.01)	$ 1.03
Weighted average shares outstanding, basic (in shares)	50,146	49,947
Weighted average shares outstanding, diluted (in shares)	50,146	50,081