Stockholders' Equity - Common Stock (Details) - USD ($) $ in Thousands	1 Months Ended	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2021	Feb. 28, 2021	Feb. 28, 2017
Stockholders' equity
Proceeds from issuance of common stock		$ 38,443
Maximum | Share Repurchase Program
Stockholders' equity
Stock Repurchase Program, maximum amount authorized for repurchase			$ 500,000
Common Stock
Stockholders' equity
Payment of stock offering costs		$ 784
Common Stock | Share Repurchase Program
Stockholders' equity
Repurchase Program, number of shares repurchased (in shares)		0
Common Stock | At The Market
Stockholders' equity
ATM Program, maximum amount authorized for issuance				$ 300,000
Proceeds from issuance of common stock	$ 38,400
ATM Program, number of shares sold or issued (in shares)	2,913,682
ATM Program, remaining amount authorized for issuance	$ 137,000	$ 137,000
Preferred Stock
Stockholders' equity
Payment of stock offering costs		$ 3,943
Preferred Stock | Share Repurchase Program
Stockholders' equity
Repurchase Program, number of shares repurchased (in shares)		0