CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Paid-In Capital	Retained Earnings	Unearned ESOP Shares	Accumulated Other Comprehensive Income (Loss)
Balance (in shares) at Jun. 30, 2021		78,965,000
Balance (in value) at Jun. 30, 2021	$ 1,042,944	$ 790	$ 654,396	$ 408,367	$ (26,753)	$ 6,144
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	56,177			56,177
Other comprehensive loss, net of income tax	(29,093)					(29,093)
ESOP shares committed to be released	1,945		486		1,459
Stock repurchases (in shares)		(7,468,000)
Stock repurchases (in value)	(95,967)	$ (75)	(95,892)
Stock-based compensation expense	3,117		3,117
Cancellation of shares issued for restricted stock awards (in shares)		(73,000)
Cancellation of shares issued for restricted stock awards	(932)	$ (1)	(931)
Cash dividends declared	(23,022)			(23,022)
Balance (in shares) at Mar. 31, 2022		71,424,000
Balance (in value) at Mar. 31, 2022	955,169	$ 714	561,176	441,522	(25,294)	(22,949)
Balance (in shares) at Dec. 31, 2021		73,453,000
Balance (in value) at Dec. 31, 2021	995,470	$ 735	587,392	431,549	(25,780)	1,574
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	17,693			17,693
Other comprehensive loss, net of income tax	(24,523)					(24,523)
ESOP shares committed to be released	666		180		486
Stock repurchases (in shares)		(2,020,000)
Stock repurchases (in value)	(26,969)	$ (21)	(26,948)
Stock-based compensation expense	676		676
Cancellation of shares issued for restricted stock awards (in shares)		(9,000)
Cancellation of shares issued for restricted stock awards	(124)		(124)
Cash dividends declared	(7,720)			(7,720)
Balance (in shares) at Mar. 31, 2022		71,424,000
Balance (in value) at Mar. 31, 2022	$ 955,169	$ 714	561,176	441,522	(25,294)	(22,949)
Balance (in shares) at Jun. 30, 2022	68,666,323	68,666,000
Balance (in value) at Jun. 30, 2022	$ 894,000	$ 687	528,396	445,451	(24,807)	(55,727)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	28,798			28,798
Other comprehensive loss, net of income tax	(17,326)					(17,326)
ESOP shares committed to be released	1,564		105		1,459
Stock repurchases (in shares)		(2,008,000)
Stock repurchases (in value)	(21,130)	$ (21)	(21,109)
Issuance of stock under stock benefit plans (in shares)		61,000
Issuance of stock under stock benefit plans	0	$ 1	(1)
Stock-based compensation expense	2,407		2,407
Cancellation of shares issued for restricted stock awards (in shares)		(39,000)
Cancellation of shares issued for restricted stock awards	(439)		(439)
Cash dividends declared	$ (21,644)			(21,644)
Balance (in shares) at Mar. 31, 2023	66,679,988	66,680,000
Balance (in value) at Mar. 31, 2023	$ 866,230	$ 667	509,359	452,605	(23,348)	(73,053)
Balance (in shares) at Dec. 31, 2022		67,388,000
Balance (in value) at Dec. 31, 2022	872,640	$ 674	515,332	449,489	(23,834)	(69,021)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	10,312			10,312
Other comprehensive loss, net of income tax	(4,032)					(4,032)
ESOP shares committed to be released	485		(1)		486
Stock repurchases (in shares)		(698,000)
Stock repurchases (in value)	(6,692)	$ (7)	(6,685)
Stock-based compensation expense	811		811
Cancellation of shares issued for restricted stock awards (in shares)		(10,000)
Cancellation of shares issued for restricted stock awards	(98)		(98)
Cash dividends declared	$ (7,196)			(7,196)
Balance (in shares) at Mar. 31, 2023	66,679,988	66,680,000
Balance (in value) at Mar. 31, 2023	$ 866,230	$ 667	$ 509,359	$ 452,605	$ (23,348)	$ (73,053)