Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Accounts receivable, allowance for doubtful accounts	$ 6,067	$ 6,049
Accumulated depreciation	$ 200,064	$ 196,683
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock shares authorized	1,600,000,000	1,600,000,000
Common stock, shares issued	40,381,860	13,382,333
Common stock, shares outstanding	40,259,274	13,259,748
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	20,000,000	20,000,000
Common stock held in treasury at cost (in shares)	122,585	122,585
Series A Preferred Stock
Preferred stock, shares authorized	2,800,000
Preferred stock, shares issued	2,778,111	2,778,111
Preferred stock, shares outstanding	2,778,111	2,778,111
Series B Preferred Stock
Preferred stock, shares issued	3,029,900	0
Preferred stock, shares outstanding	3,029,900	0