Subsequent Events (Details) $ / shares in Units, shares in Thousands, $ in Thousands	Jul. 29, 2024 USD ($) $ / shares shares	Jun. 30, 2024 USD ($) bankingOffice	Dec. 31, 2023 USD ($)
Subsequent Event [Line Items]
Assets		$ 6,216,923	$ 6,152,198
Loans		3,993,181	3,927,317
Deposits		$ 5,313,557	$ 5,252,963
Heartland BancCorp | Heartland BancCorp
Subsequent Event [Line Items]
Number of banking offices | bankingOffice		20
Assets		$ 1,920,132
Loans		1,549,420
Deposits		$ 1,645,193
Heartland BancCorp | Subsequent event
Subsequent Event [Line Items]
Cash paid for acquisition	$ 24,967
Heartland BancCorp | Subsequent event | Common stock
Subsequent Event [Line Items]
Exchange ratio	3.90
Weighted average price | $ / shares	$ 39.84
Trading period	10 days
Heartland BancCorp | Subsequent event | Common stock | Forecast
Subsequent Event [Line Items]
Shares issued for acquisition (in shares) | shares	7,660