Capital Stock - Common Stock (Details) - USD ($)	1 Months Ended		3 Months Ended
	Jan. 31, 2024	Jun. 30, 2023	Mar. 31, 2024	Mar. 31, 2023	Feb. 28, 2022
Class of Stock [Line Items]
Stock repurchase program, increase in authorized amount	$ 33,000,000	$ 73,000,000
Stock repurchase program, authorized amount	$ 250,000,000	$ 250,000,000
Remaining authorized repurchase amount			$ 217,000,000
Common dividends declared			$ 27,111,000	$ 54,172,000
Dividends declared per share of common stock (in dollars per share)			$ 0.11	$ 0.23
Sales Agreements
Class of Stock [Line Items]
Aggregate offering price					$ 500,000,000
At-The-Market Offering
Class of Stock [Line Items]
Value of shares that may yet be issued under at the market offerings program			$ 426,000,000