Equity Incentive Plan (Details) - Restricted Stock [Member]	9 Months Ended
	Sep. 30, 2015 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Outstanding, Unvested restricted stock at beginning of the period	238,626
Shares Outstanding, Restricted stock granted	73,479
Shares Outstanding Restricted stock vested	(79,238)
Shares Outstanding, Restricted stock forfeited	(28,024)
Shares Outstanding, Unvested restricted stock at end of the period	204,843
Weighted Average Grant Date Fair Value, Unvested restricted stock at beginning of the period (in dollars per share) | $ / shares	$ 26.24
Weighted Average Grant Date Fair Value, Restricted stock granted (in dollars per share) | $ / shares	33.53
Weighted Average Grant Date Fair Value, Restricted stock vested (in dollars per share) | $ / shares	25.1
Weighted Average Grant Date Fair Value, Restricted stock forfeited (in dollars per share) | $ / shares	29.95
Weighted Average Grant Date Fair Value, Unvested restricted stock at end of the period (in dollars per share) | $ / shares	$ 28.79