CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 2,506	$ (1,306)	$ 9,021	$ (5,484)
Other comprehensive income (loss), net of tax:
Deferred gains on derivatives designated as cash flow hedges	26,561	0	21,175	0
Reclassification of deferred losses on derivatives designated as cash flow hedges to cost of goods sold	845	0	6,799	0
Total comprehensive income (loss), net of tax	$ 29,912	$ (1,306)	$ 36,995	$ (5,484)