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Stock-Based Compensation (Stock-Settled Stock Appreciation Rights Grant Details) (Details) (Stock Settled Stock Appreciation Rights SARS [Member], USD $)
In Thousands, except Per Share data, unless otherwise specified
 6 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Stock Settled Stock Appreciation Rights SARS [Member]
    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
SSSARs granted (in rights) 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted
/ us-gaap_AwardTypeAxis
= us-gaap_StockAppreciationRightsSARSMember		 2us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted
/ us-gaap_AwardTypeAxis
= us-gaap_StockAppreciationRightsSARSMember
Weighted average grant date fair value per award   $ 10.14us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_StockAppreciationRightsSARSMember
Weighted average assumptions used in fair value calculations:    
Risk-free interest rate   0.61%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
/ us-gaap_AwardTypeAxis
= us-gaap_StockAppreciationRightsSARSMember
Dividend yield   2.01%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
/ us-gaap_AwardTypeAxis
= us-gaap_StockAppreciationRightsSARSMember
Volatility factor of the expected market price of our common stock   23.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
/ us-gaap_AwardTypeAxis
= us-gaap_StockAppreciationRightsSARSMember
Weighted average expected life in years   2 years 8 months 5 days