Business Combinations - Narrative (Details) $ / shares in Units, $ in Thousands	Oct. 01, 2025 USD ($) branch $ / shares	Jul. 11, 2025 USD ($) branch $ / shares	Mar. 31, 2026 USD ($)	Dec. 31, 2025 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Business Combination [Line Items]
Goodwill			$ 1,034,997	$ 1,034,735
Allowance for credit losses			$ 176,252	$ 178,803	$ 140,267	$ 138,055
Villages Bancorporation, Inc
Business Combination [Line Items]
Number of branches operated | branch	19
Percentage of common stock acquired	100.00%
Per share cash consideration for shares receiving cash (in dollars per share) | $ / shares	$ 1,000
Per share exchange ratio for shares receiving stock	38.5000
Acquiree shares receiving cash consideration	25.00%
Acquiree shares receiving stock consideration	75.00%
Common stock threshold of outstanding stock that will receive preferred stock	9.75%
Total consideration	$ 829,145
Goodwill	280,350
Allowance for credit losses	25,700
Allowance on PCD loans acquired	$ 3,000
Intangible assets weighted average useful life	10 years
Book value of loans at acquisition	$ 126,351
Book balance of loans at acquisition	148,575
Villages Bancorporation, Inc | Acquired Non-PCD Loans
Business Combination [Line Items]
Allowance for credit losses	$ 22,700
Heartland Bancshares, Inc
Business Combination [Line Items]
Number of branches operated | branch		4
Percentage of common stock acquired		100.00%
Per share cash consideration for shares receiving cash (in dollars per share) | $ / shares		$ 147.10
Per share exchange ratio for shares receiving stock		4.9263
Total consideration		$ 111,224
Goodwill		22,228
Allowance for credit losses		2,000
Allowance on PCD loans acquired		$ 100
Intangible assets weighted average useful life		10 years
Book value of loans at acquisition		$ 7,200
Book balance of loans at acquisition		6,400
Heartland Bancshares, Inc | Acquired Non-PCD Loans
Business Combination [Line Items]
Allowance for credit losses		$ 1,900