Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Allowance for doubtful accounts	$ 4,940	$ 4,256
Preferred stock, par value (USD per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	25,000,000	25,000,000
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (USD per share)	$ 0.01	$ 0.01
Series A preferred stock
Preferred stock, par value (USD per share)	$ 100,000
Preferred stock, shares outstanding (in shares)	6,000
Common stock, Class A
Common stock, shares authorized	240,000,000	240,000,000
Common stock, shares issued (in shares)	71,357,810	70,646,007
Common stock, shares outstanding (in shares)	71,357,810	70,646,007
Voting common stock
Common stock, shares authorized	60,000,000	60,000,000
Common stock, shares issued (in shares)	11,932,722	11,932,722
Common stock, shares outstanding (in shares)	11,932,722	11,932,722