Stockholders' Equity - Preferred Stock (Details) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($) shares
Increase (Decrease) in Temporary Equity [Roll Forward]
Beginning balance (in shares)	250
Ending balance (in shares)	260
Preferred Stock
Increase (Decrease) in Temporary Equity [Roll Forward]
Beginning balance (in shares)	250
Issuance of preferred stock (in shares)	0
Amortization of preferred stock issuance costs (in shares)	0
Issuance of preferred PIK dividend (in shares)	10
Ending balance (in shares)	260
Beginning balance | $	$ 237,641
Issuance of preferred stock | $	0
Amortization of preferred stock issuance costs | $	1,122
Issuance of preferred PIK dividend | $	9,079
Ending balance | $	$ 247,842