Long-Term Debt (Narrative) (Details) (USD $)	0 Months Ended	3 Months Ended
	Jan. 30, 2014	Sep. 30, 2014	Jun. 30, 2014	Jan. 21, 2011
Debt Instrument [Line Items]
Aggregate principle amount		$ 350,000,000
Debt instrument, stated interest rate		7.375%
Debt instrument, maturity		Mar. 01, 2021
Debt financing costs, net		6,804,000	7,225,000
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%
Debt instrument, maturity		Mar. 01, 2021
Indebtedness or guarantees over which domestic subsidiary guarantees the company's debt		10,000,000
Debt financing costs, net		6,000,000
Additional aggregate principal amount issued	100,000,000
Percentage of principal amount Senior Notes were sold at		106.75%
Debt financing costs, incurred and capitalized		$ 2,200,000