Mezzanine Equity (Details)		12 Months Ended
	Apr. 01, 2020 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) numberOfClassesOfReceivables $ / shares shares	Dec. 31, 2018 USD ($) shares	Dec. 31, 2019 USD ($)	Dec. 31, 2017 USD ($)
Temporary Equity [Line Items]
Issuance of common stock, net | $	$ 110,000,000	$ 69,701,000	$ 107,593,000
Series A convertible preferred stock—par value $0.001 per share; 10,000,000 shares authorized; 40,000 and 0 shares issued and outstanding, respectively | $		$ 39,823,000	$ 0	$ 0	$ 0
Temporary equity, dividends (in shares) | shares		30,640
Common stock issued upon conversion (in shares) | shares	2,622,177
Preferred stock, dividend rate		0.055%
Preferred stock, dividend (in dollars per share) | $ / shares		$ 17.95
Conversion price ratio denominator | $		$ 19.51
Conversion stock price trigger (in shares) | shares		27.32
Threshold consecutive trading days | numberOfClassesOfReceivables		30
Common Stock
Temporary Equity [Line Items]
Issuance of common stock, net (in shares) | shares	4,484,305	4,484,305	4,836,336
Shares issued, price per share (in dollars per share) | $ / shares	$ 15.61
Issuance of common stock, net | $		$ 4,000	$ 5,000
Preferred Stock
Temporary Equity [Line Items]
Issuance of common stock, net (in shares) | shares	40,000
Shares issued, price per share (in dollars per share) | $ / shares	$ 1,000
Issuance of common stock, net | $	$ 40,000,000