Net Income (Loss) Per Share - Summary of Common Stock Issuance (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Subsidiary, Sale of Stock [Line Items]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Net proceeds	$ 0	$ 123,059,000	$ 0
Stock Issued During Period, Value, New Issues		$ 122,832,000
Aggregate Value of ATM Program	$ 100,000,000