Capital Return Program - Open Market Share Repurchase Plan (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended		17 Months Ended
	Jan. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Jan. 31, 2024	Feb. 28, 2023
Capital Return Program
Share repurchase authorized amount			$ 250,000		$ 325,000
Amount (excluding fees and expenses)		$ 197,052	$ 128,830
Open Market Share Repurchase Plan
Capital Return Program
Share repurchase authorized amount					$ 75,000
Shares repurchased		18,634,000	2,978,000	31,410,000
Amount (excluding fees and expenses)		$ 196,608	$ 32,946	$ 325,300
Weighted average cost per share (excluding fees and expenses		$ 10.551	$ 11.062	$ 10.354
Open Market Share Repurchase Plan | Subsequent Events
Capital Return Program
Shares repurchased	38,462
Amount (excluding fees and expenses)	$ 400
Weighted average cost per share (excluding fees and expenses	$ 11.551