Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023
Accumulated Other Comprehensive Income Loss [Line Items]
Tax effect	$ 6,865		$ 8,512
Total Stockholders' Equity Less Maximum Cash Obligation Related to ESOP Shares	511,188	$ 493,558	492,687	$ 476,368	$ 465,442	$ 470,286
Net unrealized loss on available-for-sale securities
Accumulated Other Comprehensive Income Loss [Line Items]
AOCI before tax	(28,882)		(35,719)
Net unrealized loss on derivatives used for cash flow hedges
Accumulated Other Comprehensive Income Loss [Line Items]
AOCI before tax	0		(93)
Accumulated Other Comprehensive (Loss)
Accumulated Other Comprehensive Income Loss [Line Items]
Total Stockholders' Equity Less Maximum Cash Obligation Related to ESOP Shares	$ (22,017)	$ (26,195)	$ (27,300)	$ (30,493)	$ (29,751)	$ (27,176)

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

- Definition

Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest.

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HILLS BANCORPORATION 10-Q