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Summary of Non-Vested Service-Based Restricted Stock Units (Details) - Service Based Restricted Stock Units
12 Months Ended
Dec. 31, 2015
$ / shares
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Granted | shares 135,940
Vested | shares (9,664)
Non-vested shares, Ending Balance | shares 126,276
Weighted average fair value at date of grant, Granted | $ / shares $ 18.22
Weighted average fair value at date of grant, Vested | $ / shares 18.22
Weighted average fair value at date of grant, Ending Balance | $ / shares $ 18.22