Fair Value Measurements (Schedule Of Estimated Fair Values Of Long Term Debt) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Jan. 30, 2014	Jan. 21, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, stated interest rate	7.375%
Debt instrument, maturity	Mar. 01, 2021
7 3/8% Senior Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, stated interest rate	7.375%	7.375%	7.375%	7.375%
Debt instrument, maturity	Mar. 01, 2021
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	$ 309,750	$ 369,250