Summary of Significant Accounting Policies (Effect of Revision on Affected Line Items Within Consolidated Statements of Shareholders' Equity) (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income	$ 10,646	$ 592
Total shareholders' equity	1,378,663	1,496,025	$ 1,457,336	$ 1,491,386
Retained Earnings
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income	10,646	592
Total shareholders' equity	2,414,378	2,310,988	2,403,750	2,310,396
Accumulated other comprehensive loss
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total shareholders' equity	$ (2,227)	(2,227)	$ (2,227)	(2,227)
Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income		2,192
Other comprehensive loss, net of tax		(1,267)
Total shareholders' equity		1,510,039		1,505,067
Previously Reported [Member] | Retained Earnings
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total shareholders' equity		2,325,002		2,322,810
Previously Reported [Member] | Accumulated other comprehensive loss
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total shareholders' equity				(960)
Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income		(1,600)
Other comprehensive loss, net of tax		1,267
Total shareholders' equity		(14,014)		(13,681)
Adjustment | Retained Earnings
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total shareholders' equity		$ (14,014)		(12,414)
Adjustment | Accumulated other comprehensive loss
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total shareholders' equity				$ (1,267)