UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenues:
Revenue from Contract with Customer, Product and Service [Extensible Enumeration]	Service revenue and other [Member]	Service revenue and other [Member]
Service revenue and other	$ 71,686	$ 64,414
Operating expenses:
Cost of services exclusive of depreciation and amortization	26,567	26,339
Selling, general and administrative	26,609	23,771
Depreciation and amortization	15,782	14,684
Total operating expenses	68,958	64,794
Operating income (loss)	2,728	(380)
Other income (expense):
Other income (expense), net	1,117	(170)
Income (loss) before income taxes	3,845	(550)
Income tax expense	1,779	53
Net income (loss)	$ 2,066	$ (603)
Net income (loss) per share, basic and diluted:
Basic net income (loss)per share (in dollars per share)	$ 0.04	$ (0.01)
Diluted net income (loss) per share (in dollars per share)	$ 0.04	$ (0.01)
Weighted average shares outstanding, basic (in shares)	50,291	50,146
Weighted average shares outstanding, diluted (in shares)	50,512	50,146