Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Currently payable
Federal	$ 9,911	$ 35,919	$ 14,294
State	1,222	6,558	4,603
Foreign	103	29	0
Current Total	11,236	42,506	18,897
Deferred
Federal	49,046	33,581	40,446
State	8,153	5,248	1,612
Foreign	68	(592)	0
Deferred Total	57,267	38,237	42,058
Income Taxes	68,503	80,743	60,955
Effective income tax rate reconciliation
U.S. statutory tax rate	35.00%	35.00%	35.00%
State income taxes, less federal income tax benefits	3.50%	3.60%	3.80%
Adjustment to deferred tax assets and liabilities for enacted changes in tax laws and rates	0.00%	0.00%	(2.20%)
Other	1.10%	(0.60%)	0.00%
Effective income tax rate	39.60%	38.00%	36.60%
Deferred tax assets
Accounts receivable allowances and return reserves	12,877	13,784
Compensation and benefits	48,274	37,745
Indirect benefit of uncertain state and foreign tax positions	11,196	11,279
All other assets	6,866	2,368
Total deferred tax assets	79,213	65,176
Valuation allowance	(972)	(895)
Net deferred tax assets	78,241	64,281
Deferred tax liabilities [Abstract]
Subscription acquisition costs	57,456	41,547
Accumulated depreciation and amortization	209,122	160,334
Gains from dispositions	23,872	22,757
All other liabilities	5,925	4,695
Total deferred tax liabilities	296,375	229,333
Net deferred tax liability	$ (218,134)	$ (165,052)