COMPREHENSIVE INCOME (LOSS) - Schedule of Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021
Accumulated Other Comprehensive Income Loss [Line Items]
Total Stockholders' Equity	$ 866,230	$ 872,640	$ 894,000	$ 955,169	$ 995,470	$ 1,042,944
Total accumulated other comprehensive loss
Accumulated Other Comprehensive Income Loss [Line Items]
Total Stockholders' Equity	(73,053)	$ (69,021)	(55,727)	$ (22,949)	$ 1,574	$ 6,144
Net unrealized loss on securities available for sale
Accumulated Other Comprehensive Income Loss [Line Items]
AOCI before tax, attributable to parent	(141,128)		(118,031)
Tax effect	40,713		34,104
Total Stockholders' Equity	(100,415)		(83,927)
Fair value adjustments on derivatives
Accumulated Other Comprehensive Income Loss [Line Items]
AOCI before tax, attributable to parent	38,671		39,805
Tax effect	(11,214)		(11,542)
Total Stockholders' Equity	27,457		28,263
Benefit plan adjustments
Accumulated Other Comprehensive Income Loss [Line Items]
AOCI before tax, attributable to parent	(134)		(89)
Tax effect	39		26
Total Stockholders' Equity	$ (95)		$ (63)