Incentive Stock Plans - Schedule of Restricted Stock Activity (Details) - Restricted Stock - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Number of Shares, Beginning Balance	184,023
Granted (in shares)	96,088	186,783	33,607
Vested (in shares)	(76,421)
Cancelled (in shares)	(3,951)
Number of Shares, Ending Balance	199,739	184,023
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted Average Grant Date Fair Value, Beginning Balance (in dollars per share)	$ 37.53
Granted (in dollars per share)	26.28	$ 36.42	$ 57.54
Vested (in dollars per share)	34.45
Cancelled (in dollars per share)	40.88
Weighted Average Grant Date Fair Value, Ending Balance (in dollars per share)	$ 33.09	$ 37.53