Securities, Securities in Continuous Unrealized Loss Position (Details) $ in Thousands	12 Months Ended
	Jun. 30, 2022 USD ($) Security	Jun. 30, 2021 USD ($) Security
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 288,207	$ 87,974
More than 12 months, fair value	12,078	2,469
Total, fair value	300,285	90,443
Less than 12 months, unrealized losses	21,161	1,343
More than 12 months, unrealized losses	2,776	61
Total, unrealized losses	$ 23,937	$ 1,404
Less than 12 months, number of securities | Security	233	29
More than 12 months, number of securities | Security	5	1
Total, number of securities | Security	238	30
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 592,159	$ 63,977
More than 12 months, fair value	735	471
Total, fair value	592,894	64,448
Less than 12 months, unrealized losses	53,995	443
More than 12 months, unrealized losses	183	29
Total, unrealized losses	$ 54,178	$ 472
Less than 12 months, number of securities | Security	2,477	84
More than 12 months, number of securities | Security	5	1
Total, number of securities | Security	2,482	85
Total Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 880,366	$ 151,951
More than 12 months, fair value	12,813	2,940
Total, fair value	893,179	154,891
Less than 12 months, unrealized losses	75,156	1,786
More than 12 months, unrealized losses	2,959	90
Total, unrealized losses	$ 78,115	$ 1,876
Less than 12 months, number of securities | Security	2,710	113
More than 12 months, number of securities | Security	10	2
Total, number of securities | Security	2,720	115
Available for sale securities transferred at fair value to held to maturity	$ 0	$ 0
Proceeds from sale of available-for-sale securities	0	0
Gross realized gains (losses) on sale of available-for-sale securities	0	0
Other-than-temporary impairment losses	0	0
U.S. Government Sponsored Enterprises [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	11,319	6,787
More than 12 months, fair value	0	0
Total, fair value	11,319	6,787
Less than 12 months, unrealized losses	1,747	212
More than 12 months, unrealized losses	0	0
Total, unrealized losses	$ 1,747	$ 212
Less than 12 months, number of securities | Security	5	2
More than 12 months, number of securities | Security	0	0
Total, number of securities | Security	5	2
U.S. Treasury Securities [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 18,427	$ 1,970
More than 12 months, fair value	0	0
Total, fair value	18,427	1,970
Less than 12 months, unrealized losses	1,731	1
More than 12 months, unrealized losses	0	0
Total, unrealized losses	$ 1,731	$ 1
Less than 12 months, number of securities | Security	8	1
More than 12 months, number of securities | Security	0	0
Total, number of securities | Security	8	1
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 31,980	$ 1,991
More than 12 months, fair value	0	0
Total, fair value	31,980	1,991
Less than 12 months, unrealized losses	1,643	2
More than 12 months, unrealized losses	0	0
Total, unrealized losses	$ 1,643	$ 2
Less than 12 months, number of securities | Security	9	1
More than 12 months, number of securities | Security	0	0
Total, number of securities | Security	9	1
State and Political Subdivisions [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 140,324
More than 12 months, fair value	0
Total, fair value	140,324
Less than 12 months, unrealized losses	276
More than 12 months, unrealized losses	0
Total, unrealized losses	$ 276
Less than 12 months, number of securities | Security	148
More than 12 months, number of securities | Security	0
Total, number of securities | Security	148
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 353,837	$ 42,751
More than 12 months, fair value	735	0
Total, fair value	354,572	42,751
Less than 12 months, unrealized losses	35,564	303
More than 12 months, unrealized losses	183	0
Total, unrealized losses	$ 35,747	$ 303
Less than 12 months, number of securities | Security	2,362	76
More than 12 months, number of securities | Security	5	0
Total, number of securities | Security	2,367	76
Mortgage-backed Securities-Residential [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 29,872	$ 19,071
More than 12 months, fair value	0	0
Total, fair value	29,872	19,071
Less than 12 months, unrealized losses	3,289	167
More than 12 months, unrealized losses	0	0
Total, unrealized losses	$ 3,289	$ 167
Less than 12 months, number of securities | Security	27	4
More than 12 months, number of securities | Security	0	0
Total, number of securities | Security	27	4
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 39,865	$ 12,839
More than 12 months, fair value	0	0
Total, fair value	39,865	12,839
Less than 12 months, unrealized losses	2,242	90
More than 12 months, unrealized losses	0	0
Total, unrealized losses	$ 2,242	$ 90
Less than 12 months, number of securities | Security	27	2
More than 12 months, number of securities | Security	0	0
Total, number of securities | Security	27	2
Mortgage-backed Securities-Multi-Family [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 71,631	$ 59,176
More than 12 months, fair value	12,078	2,469
Total, fair value	83,709	61,645
Less than 12 months, unrealized losses	12,868	933
More than 12 months, unrealized losses	2,776	61
Total, unrealized losses	$ 15,644	$ 994
Less than 12 months, number of securities | Security	29	21
More than 12 months, number of securities | Security	5	1
Total, number of securities | Security	34	22
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 155,726	$ 3,890
More than 12 months, fair value	0	0
Total, fair value	155,726	3,890
Less than 12 months, unrealized losses	13,895	12
More than 12 months, unrealized losses	0	0
Total, unrealized losses	$ 13,895	$ 12
Less than 12 months, number of securities | Security	68	3
More than 12 months, number of securities | Security	0	0
Total, number of securities | Security	68	3
Corporate Debt Securities [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 16,634	$ 970
More than 12 months, fair value	0	0
Total, fair value	16,634	970
Less than 12 months, unrealized losses	1,250	30
More than 12 months, unrealized losses	0	0
Total, unrealized losses	$ 1,250	$ 30
Less than 12 months, number of securities | Security	16	1
More than 12 months, number of securities | Security	0	0
Total, number of securities | Security	16	1
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 10,751	$ 2,506
More than 12 months, fair value	0	471
Total, fair value	10,751	2,977
Less than 12 months, unrealized losses	651	36
More than 12 months, unrealized losses	0	29
Total, unrealized losses	$ 651	$ 65
Less than 12 months, number of securities | Security	11	2
More than 12 months, number of securities | Security	0	1
Total, number of securities | Security	11	3