Fair Value Measurements (Narrative) (Details) (USD $)	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]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Aggregate principle amount	$ 250,000,000	$ 250,000,000
Debt instrument, stated interest rate	7.375%	7.375%	7.375%
Debt instrument, maturity	Mar. 01, 2021	Mar. 01, 2021