Fair Value Measurements (Schedule Of Estimated Fair Values Of Long Term Debt) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended	0 Months Ended
	Dec. 31, 2013	Jan. 21, 2011 7 3/8% Senior Notes [Member]	Dec. 31, 2013 7 3/8% Senior Notes [Member]	Dec. 31, 2013 Level 2 [Member] 7 3/8% Senior Notes [Member]	Jun. 30, 2013 Level 2 [Member] 7 3/8% Senior Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
7 3/8% Senior Notes due				$ 271,250	$ 271,250
Debt instrument, stated interest rate	7.375%	7.375%	7.375%
Debt instrument, maturity	Mar. 01, 2021	Mar. 01, 2021