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Share-Based Compensation (Details 4) - Jun. 30, 2015 - Restricted Stock - USD ($)
$ / shares in Units, $ in Millions
Total
Restricted Stock Awards  
Non-vested at beginning of year (in shares) 226,733
Non-vested at end of year (in shares) 226,733
Weighted Average Grant Date Fair Value  
Non-vested at beginning of year (in dollars per share) $ 17.39
Non-vested at end of year (in dollars per share) $ 17.39
Unrecognized compensation  
Unrecognized compensation costs $ 2.3
Minimum  
Unrecognized compensation  
Unrecognized compensation costs, period of recognition 5 years
Vesting period 5 years
Maximum  
Unrecognized compensation  
Unrecognized compensation costs, period of recognition 6 years
Vesting period 6 years