Basis of Presentation - Schedule of Basic and Diluted Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Basic earnings per share calculation:
Net income	$ 9,753	$ 14,599
Weighted-average basic shares outstanding	24,138,437	17,180,000
Basic earnings per share	$ 0.40	$ 0.85
Diluted earnings per share:
Net income	$ 9,753	$ 14,599
Weighted-average basic shares outstanding	24,138,437	17,180,000
Average diluted common shares outstanding	472,554	0
Weighted-average diluted shares outstanding	24,610,991	17,180,000
Diluted earnings per share	$ 0.40	$ 0.85
Pro forma earnings per share:
Pro forma net income	$ 9,753	$ 9,803
Weighted-average basic shares outstanding	24,138,437	17,180,000
Pro forma basic earnings per share	$ 0.40	$ 0.57
Pro forma diluted earnings per share:
Pro forma net income	$ 9,753	$ 9,803
Weighted-average diluted shares outstanding	24,610,991	17,180,000
Pro forma diluted earnings per share	$ 0.40	$ 0.57

Diluted earnings per share pro forma.

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Pro forma net income (loss).

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Pro forma basic earnings per share or earnings per unit, which is commonly presented in initial public offerings based on the terms of the offering.

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Pro forma diluted earnings per share, which is commonly presented in initial public offerings.

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The weighted average number of shares or units and dilutive common stock or unit equivalents outstanding in the calculation of proforma diluted earnings per share (earnings per unit), which is commonly presented in initial public offerings based on the terms of the offering.

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