Other Borrowed Funds	6 Months Ended
	Jun. 30, 2023
Debt Disclosure [Abstract]
Long-Term Debt	At June 30, 2023, the Company had $2,589.0 million in outstanding FHLB borrowings consisting of $553.0 million in fixed rate borrowings with tenors of up to two weeks and with an average fixed rate of 5.30%, $450.0 million in fixed rate borrowings with tenors of up to one month and with an average fixed rate of 5.39%, $600.0 million in 2-month fixed rate borrowings with an average fixed rate of 5.38%, $150.0 million in 3-month fixed rate borrowings with an average fixed rate of 5.56%, $400.0 million in 4-month fixed rate borrowings with an average fixed rate of 5.54%, and $436.0 million in 5-month fixed rate borrowings with an average fixed rate of 5.56%, as compared to $2,327.0 million outstanding borrowings with the FHLB at December 31, 2022. The Company has remaining available lines of credit with the FHLB of approximately $4,517.6 million, subject to collateral availability at June 30, 2023. The borrowings are collateralized by certain loans with an advance equivalent collateral value of $7,106.6 million. As of June 30, 2023 and December 31, 2022, there were no long or short-term advances outstanding with the FHLB. As of June 30, 2023 and December 31, 2022, the Company had no material other borrowed funds.