Stockholders' Equity - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Numerator (basic)
Net income	$ 14,095	$ 3,097	$ (1,308)	$ 15,811	$ 7,011	$ 725	$ 6,221	$ 1,540	$ 31,695	$ 15,497	$ 13,147
Less net income allocated to participating securities									0	(2,224)	(9,926)
Net income attributable to common stock									$ 31,695	$ 13,273	$ 3,221
Denominator (basic)
Weighted average shares of common stock outstanding									70,228,159	56,160,539	12,353,047
Basic EPS	$ 0.20	$ 0.04	$ (0.02)	$ 0.23	$ 0.10	$ 0.01	$ 0.09	$ 0.03	$ 0.45	$ 0.24	$ 0.26
Numerator (diluted)
Less net income allocated to participating securities									$ 0	$ (2,114)	$ (9,303)
Net income attributable to common stock									$ 31,695	$ 13,383	$ 3,844
Denominator (diluted)
Dilutive effect of stock options and restricted stock units									2,390,000	3,406,000	3,379,000
Weighted average shares of common stock outstanding									72,618,069	59,566,773	15,731,807
Diluted EPS	$ 0.20	$ 0.04	$ (0.02)	$ 0.22	$ 0.10	$ 0.01	$ 0.09	$ 0.03	$ 0.44	$ 0.22	$ 0.24
Stock options									1,000	526,000	1,389,000