Income Taxes (Reconciliation of Expected Income Taxes) (Details) - USD ($) $ in Thousands	3 Months Ended							12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Effective Income Tax Rate Reconciliation, Amount
Expected United States federal income tax at statutory rate								$ 41,443	$ 74,504	$ 69,006
State income taxes, net of federal benefit								5,447	4,795	4,862
Domestic manufacturing deduction								(1,233)	(1,210)	(2,642)
Foreign income at different rates								(2,861)	(9,515)	(295)
Goodwill impairment								23,172	0	0
Change in Valuation Allowance								5,067	963	0
Corporate tax reorganization								(4,173)	(20,670)	0
Unrealized foreign exchange losses								7,056	0	0
Non-taxable gains on acquisition of pre-existing ownership interests in HPPC and Empire								0	(2,793)	0
Reduction of deferred tax liabilities resulting from change in United Kingdom tax rate								(4,942)	0	(3,739)
Other								1,956	2,461	2,416
Total	$ 23,914	$ 22,602	$ 13,330	$ 4,287	$ 21,500	$ 19,838	$ 2,911	$ 70,932	$ 48,535	$ 69,608
Effective Income Tax Rate Reconciliation, Percent
Federal statutory income tax rate, percent								35.00%	35.00%	35.00%
State income taxes, net of federal benefit, percent								4.60%	2.20%	2.50%
Domestic manufacturing deduction, percent								(1.00%)	(0.60%)	(1.30%)
Foreign income at different rates, percent								(2.40%)	(4.50%)	(0.10%)
Goodwill Impairment, percent								19.60%	0.00%	0.00%
Change in Valuation Allowance, percent								4.30%	0.50%	0.00%
Corporate tax reorganization, percent								(3.50%)	(9.70%)	(0.00%)
Unrealized foreign exchange losses, percent								6.00%	0.00%	0.00%
Non-taxable gains on acquisition of pre-existing ownership interests in HPPC and Empire, percent								0.00%	(1.30%)	0.00%
Reduction of deferred tax liabilities resulting from change in United Kingdom tax rate, percent								(4.20%)	0.00%	(1.90%)
Other, percent								1.50%	1.20%	1.10%
Provision for income taxes, percent								59.90%	22.80%	35.30%