Summary of Significant Accounting Policies - Earnings per Share (Details) - shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Nov. 05, 2016	Nov. 04, 2016	Nov. 03, 2016
Earnings per Share (EPS)
Common stock, shares issued				56,946,673
Common stock, shares outstanding					57,000,000	0
Basic WASO	57,000,000	57,000,000	57,000,000
Potentially dilutive shares	1,000,000
Dilutive WASO	58,000,000	57,000,000	57,000,000