Loans - Summary of Risk Category by Loan Type (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	$ 11,692,780	$ 11,800,338
Pass (1-6)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	10,864,226	11,066,119
Special Mention (7)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	400,329	335,627
Classified (8-9)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	345,806	328,941
Internal Investment Grade
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	11,610,361	11,730,687
C&I
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	5,131,963	5,208,520
C&I \| Pass (1-6)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	4,781,026	4,909,871
C&I \| Special Mention (7)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	199,463	147,216
C&I \| Classified (8-9)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	151,474	151,433
CRE-investor owned
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	2,942,610	2,968,535
CRE-investor owned \| Pass (1-6)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	2,733,131	2,785,969
CRE-investor owned \| Special Mention (7)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	131,450	110,865
CRE-investor owned \| Classified (8-9)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	78,029	71,701
CRE-owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	2,469,432	2,442,842
CRE-owner occupied \| Pass (1-6)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	2,315,934	2,296,139
CRE-owner occupied \| Special Mention (7)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	57,077	60,236
CRE-owner occupied \| Classified (8-9)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	96,421	86,467
Construction real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	667,703	687,584
Construction real estate \| Pass (1-6)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	654,252	675,659
Construction real estate \| Special Mention (7)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	8,172	10,762
Construction real estate \| Classified (8-9)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	5,279	1,163
Residential
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	345,599	367,093
Residential \| Pass (1-6)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	326,851	342,380
Residential \| Special Mention (7)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	4,167	6,548
Residential \| Classified (8-9)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	14,581	18,165
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	53,054	56,113
Consumer \| Pass (1-6)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	53,032	56,101
Consumer \| Special Mention (7)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	0	0
Consumer \| Classified (8-9)
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	22	12
Total loans classified by performing status
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, including unearned loan fees	$ 82,419	$ 69,651