Stockholders' Equity (ATM Program) (Details) - USD ($) $ / shares in Units, $ in Thousands		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Class of Stock [Line Items]
Total allowable shares (in shares)		375,000,000		375,000,000
Total shares issued (in shares)		182,407,911		181,424,670
Net proceeds		$ 30,765	$ 33,048
Stock issuance costs		$ 125	$ 126
ATM equity programs
Class of Stock [Line Items]
Shares of common stock (in shares)		650,135	717,473
Average price per share (net) (in dollars per share)		$ 43.98	$ 43.23
Net proceeds		$ 28,592	$ 31,018
Stock issuance costs	[1]	$ 558	$ 575
2020 ATM
Class of Stock [Line Items]
Total allowable shares (in shares)		17,500,000
Total shares issued (in shares)		7,722,511

[1] Stock issuance costs consist primarily of underwriters' fees and commissions, and legal and accounting fees.