Stockholders' Equity - Reconciliation of Number of Shares of Common Stock (Details) - shares	6 Months Ended		7 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017
Stockholders Equity Note [Abstract]
Common stock, beginning of period	45,721,000	48,297,000
Shares issued for stock options exercised	38,000	108,000
Shares of common stock issued upon lapse of restricted stock units ("RSUs")	341,000	322,000
Common stock retired	(1,065,000)	(2,125,000)	(967,337)
Common stock, end of period	45,035,000	46,602,000	45,035,000