Stock Based Compensation - Summary of Stock Option Activity (Details) - $ / shares		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding at beginning of year (in shares)		419,238	576,651	576,651
Granted (in shares)	[1]	240,000	0	0
Exercised (in shares)		(47,925)	(157,413)	0
Canceled (in shares)		0	0	0
Options outstanding at end of year (in shares)		611,313	419,238	576,651
Options vested and expected to vest (in shares)		611,313	419,238	576,651
Options exercisable at end of year (in shares)	[2]	371,313	419,238	480,571
Price range of options exercised (in USD per share)		$ 8.66	$ 8.66
Price range of options outstanding (in USD per share)			8.66	$ 8.66
Weighted Average Exercise Price, Options outstanding at beginning of year (in USD per share)		8.66	8.66	8.66
Weighted Average Exercise Price, Granted (in USD per share)		25.82
Weighted Average Exercise Price, Exercised (in USD per share)		8.66	8.66
Weighted Average Exercise Price, Options outstanding at end of year (in USD per share)		15.40	8.66	8.66
Weighted Average Exercise Price, Options vested and expected to vest (in USD per share)		15.40	8.66	8.66
Weighted Average Exercise Price, Options exercisable at end of year (in USD per share)	[2]	8.66	$ 8.66	$ 8.66
Minimum
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Price range of options outstanding (in USD per share)		8.66
Maximum
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Price range of options outstanding (in USD per share)		$ 25,820.00

[1] The weighted average grant date fair value of the stock options was $12.01

[2] No options vested during the year ended December 31, 2015. The fair value of shares vested during the years ended December 31, 2014 and 2013 was $1.2 million, and $1.4 million, respectively.