Debt (Details) - USD ($) $ in Thousands					3 Months Ended
	Mar. 03, 2026	Feb. 26, 2026	Feb. 20, 2026	Nov. 12, 2025	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2023	Dec. 31, 2025
Debt Instrument [Line Items]
Total outstanding debt					$ 347,000
Long-term debt					297,247
Short-term debt					50,000			$ 100,000
Proceeds from issuance of debt					$ 297,223
FHLBC
Debt Instrument [Line Items]
Debt instrument maturity date				Nov. 12, 2026
Amount borrowed from FHLB				$ 50,000
Repayments of FHLB advances				$ 50,000
Interest paid monthly at an annualized rate				4.21%
Senior Notes
Debt Instrument [Line Items]
Issue of senior notes by public debt offering	$ 300,000
Debt instrument maturity date	Jun. 01, 2036
Frequency of interest payment	semi-annually
Stated interest rate, payable semi-annually (as a percent)	5.375%
Proceeds from issuance of debt	$ 297,000
Average interest rate on debt (as a percent)					5.38%
Senior Notes | Significant Other Observable Inputs (Level 2)
Debt Instrument [Line Items]
Notes Payable, Fair Value Disclosure					$ 288,000
Line of Credit | PNC
Debt Instrument [Line Items]
Repaid amount			$ 50,000
Floating interest rate			5.27%
Maximum borrowing capacity - Line of credit		$ 150,000					$ 100,000
Term of facility							3 years
Line of credit facility expiration date		Feb. 26, 2031					May 29, 2026
Maximum borrowing capacity conditional expansion		$ 200,000
Short-term borrowings
Debt Instrument [Line Items]
Average interest rate on debt (as a percent)					4.61%	5.18%
Weighted average interest rate (as a percent)					4.21%