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Stock Based Compensation RSU Measurement Date Assumptions (Details) (Restricted Stock Units (RSUs) [Member])
3 Months Ended
Sep. 30, 2014
Restricted Stock Units (RSUs) [Member]
 
RSU grant date weighted average fair value assumptions  
Volatility 17.80%
Risk free interest rate 1.06%
Dividend yield 1.50%
Stock Beta 0.765