Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Stockholders' Equity [Abstract]
Common stock, dividends (in usd per share)	$ 0.20	$ 0.15	$ 0.15	$ 0.15	$ 0.10	$ 0.10	$ 0.05	$ 0.05	$ 0.65	$ 0.30	$ 0.125
Contribution related to formation of San Mateo, I, tax									$ 8.0	$ 5.9	$ 3.6