Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 19,225	$ 19,874
Unamortized deferred financing costs, current	1,489	1,635
Unamortized deferred financing costs, noncurrent	$ 0	$ 261
Preferred stock, par value (in dollars per share)	$ 0.10	$ 0.10
Preferred stock, shares authorized (in shares)	500,000	500,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Series Y preferred stock, par value (in dollars per share)	$ 0.10	$ 0.10
Series Y preferred stock, shares authorized (in shares)	350,000	350,000
Series Y preferred stock, shares issued (in shares)	0	0
Series Y preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized (in shares)	220,000,000	220,000,000
Common stock, shares issued (in shares)	30,722,267	30,683,393
Common stock, shares outstanding (in shares)	30,722,267	30,683,393