Stock Options and Restricted Stock - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Options
Beginning Balance (In Shares)	624,000
Granted (In Shares)	338,000	351,000	0
Exercised (In Shares)	(61,000)
Forfeited/expired (In Shares)	(29,000)
Ending Balance (In Shares)	872,000	624,000
Expected to Vest (In Shares)	485,000
Exercisable (In Shares)	335,000
Weighted Average Exercise Price
Beginning Balance (in dollars per share)	$ 21.52
Granted (in dollars per share)	30.17
Exercised (in dollars per share)	16.95
Forfeited/expired (in dollars per share)	28.92
Ending Balance (in dollars per share)	25.05	$ 21.52
Expected to Vest (in dollars per share)	29.56
Exercisable (in dollars per share)	$ 17.73
Weighted Average Remaining Contractual Term (in Years)
Outstanding	7 years 29 days
Expected to Vest	8 years 11 months 5 days
Exercisable	4 years 1 month 10 days
Aggregate Intrinsic Value
Outstanding	$ 0
Expected	0
Exercisable	$ 1,562
Weighted Average Fair Value
Outstanding (in dollars per share)	$ 8.31
Expected to Vest (in dollars per share)	8.90
Exercisable (in dollars per share)	$ 7.39