INCOME TAXES: (Details) (USD $)	3 Months Ended		9 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
(Benefit) provision for income taxes
Income tax (benefit) expense	$ 6,797,000	$ 857,000	$ 15,865,000	$ 72,812,000
Effective tax rate (as a percent)	201.60%	(9.30%)	(386.70%)	(142.00%)
Valuation Allowance [Line Items]
Deferred Income Tax Expense (Benefit)			12,631,000	68,669,000
Indefinite-lived Intangible Assets
Valuation Allowance [Line Items]
Deferred Income Tax Expense (Benefit)	4,300,000		10,900,000
CANADA
Valuation Allowance [Line Items]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 2,000,000