Fair Value Measurements (Narrative) (Details) (USD $)	Sep. 30, 2014	Jun. 30, 2014	Jan. 30, 2014	Jan. 21, 2011
Debt Instrument [Line Items]
Aggregate principle amount	$ 350,000,000
Debt instrument, stated interest rate	7.375%
7 3/8% Senior Notes [Member]
Debt Instrument [Line Items]
Aggregate principle amount				$ 250,000,000
Debt instrument, stated interest rate	7.375%	7.375%	7.375%	7.375%