Income Taxes (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Income tax expense	$ 17,949,000	$ 23,828,000	$ 34,011,000	$ 45,024,000
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	$ 4,988,000	5,950,000	9,828,000	11,552,000
Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-based Payment Arrangement, Amount			$ (1,590,000)
Deferred State and Local Income Tax Expense (Benefit)		2,069,000		2,069,000
Effective Income Tax Rate Reconciliation, Book Provision Adjustment		$ 1,450,000		$ 1,450,000
EffectiveIncomeTaxRateReconciliationBookingRate	21.00%	21.00%	21.00%	21.00%
Income Taxes Paid			$ 43,387,000	$ 43,595,000