Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013	Apr. 10, 2007
Current Income Tax Expense
Federal													$ 80,124	$ 41,497	$ 5,914
State and Local													572	4,246	606
Total Current Income Tax Expense													80,696	45,743	6,520
Deferred Income Tax Expense (Benefit)
Federal													(5,245)	(11,613)	216
State and Local													1,979	(1,273)	567
Total Deferred Income Tax Expense (Benefit)													(3,266)	(12,886)	783
Total Income Tax Expense	$ 17,222	$ 17,973	$ 22,435	$ 19,800	$ 14,019	$ 13,280	$ 9,800	$ (4,242)	$ 1,950	$ 1,327	$ 1,749	$ 2,277	$ 77,430	$ 32,857	$ 7,303
Reconciliation of the company's federal statutory tax rate to its effective rate
Federal income tax at statutory rate (as a percent)													35.00%	35.00%	34.00%
State and local income tax, net (as a percent)													0.10%	2.20%	2.60%
Nondeductible expenses (as a percent)														0.40%	(0.20%)
Foreign rate differential (as a percent)													0.10%	0.20%	0.50%
Income tax credits (as a percent)													(0.40%)	(0.40%)	(2.50%)
Domestic production activity deduction (as a percent)													(1.30%)	(0.50%)
Change in tax laws (as a percent)													0.60%		1.10%
Other (as a percent)													(0.10%)	(0.40%)	(0.20%)
Effective income tax rate (as a percent)													34.00%	36.50%	35.30%
Deferred tax assets:
Accrued expenses	98				85								$ 98	$ 85
Share-based compensation expense	2,688				1,261								2,688	1,261
Reserve for returns	6,520				3,489								6,520	3,489
Reserves for accounts receivable and inventory	10,438				8,798								10,438	8,798
Intangible impairment	4,342				5,739								4,342	5,739
Federal net operating loss	801				865								801	865
Impairment on Cody note receivable	1,905				2,018								1,905	2,018
Accumulated amortization on intangible asset	8,526				9,338								8,526	9,338
Foreign net operating loss	421				271								421	271
Other	185				48								185	48
Total deferred tax asset	35,924				31,912								35,924	31,912
Valuation allowance	(2,326)				(2,289)								(2,326)	(2,289)
Total deferred tax asset less valuation allowance	33,598				29,623								33,598	29,623
Deferred tax liabilities:
Prepaid expenses	115				94								115	94
Property, plant and equipment	4,687				3,715								4,687	3,715
Other	31				315								31	315
Total deferred tax liability	4,833				4,124								4,833	4,124
Net deferred tax asset	$ 28,765				$ 25,499								$ 28,765	$ 25,499
Cody Laboratories, Inc.
Deferred tax assets:
Total deferred tax asset																$ 3,800
Net operating loss (NOL) carry forwards with the IRS at the date of acquisition, expiring in 2026 | Cody Laboratories, Inc.
Deferred tax assets:
Total deferred tax asset																1,900
Net operating loss (NOL) carry forwards with the IRS at the date of acquisition, expiring in 2027 | Cody Laboratories, Inc.
Deferred tax assets:
Total deferred tax asset																$ 1,900