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Compensation Plans - Summary of Restricted Stock Units Activity (Details) - Restricted Stock Units (RSUs)
12 Months Ended
Dec. 31, 2015
$ / shares
shares
Shares  
Outstanding, beginning of period (in shares) | shares 139,849
Granted (in shares) | shares 6,088
Vested (in shares) | shares (58,679)
Forfeited (in shares) | shares (904)
Outstanding, end of period (in shares) | shares 86,354
Weighted Average Grant Date Fair Value  
Outstanding, beginning of period (usd per share) | $ / shares $ 13.81
Granted (usd per share) | $ / shares 20.69
Vested (usd per share) | $ / shares 13.79
Forfeited (usd per share) | $ / shares 13.33
Outstanding, end of period (usd per share) | $ / shares $ 14.31