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Stockholders’ Equity - Schedule of Company's Public Offering of Common Stock (Details) - USD ($) $ in Thousands	1 Months Ended								12 Months Ended
	Nov. 30, 2019	Sep. 30, 2019	Jul. 31, 2019	May 31, 2019	Mar. 31, 2019	Jan. 31, 2019	Nov. 30, 2018	Aug. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Class of Stock [Line Items]
Stock issued (in shares)									30,900,000	15,890,000
Net Proceeds									$ 804,398	$ 260,091	$ 930
Common Stock | Underwritten Public Offering
Class of Stock [Line Items]
Stock issued (in shares)	28,750,000	28,750,000	23,000,000	20,700,000	17,250,000	14,490,000	14,375,000	14,375,000
Net Proceeds	$ 172,150	$ 173,093	$ 137,500	$ 123,102	$ 101,160	$ 83,772	$ 85,261	$ 85,980

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