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Stockholders' Equity - Narrative (Details) - USD ($)
6 Months Ended 7 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Class Of Stock [Line Items]      
Stock repurchased program, authorized amount $ 200,000,000   $ 200,000,000
Stock repurchased and retired during period, shares 1,065,000 2,125,000 967,337
Stock repurchased and retired during period, value     $ 75,000,000
Stock repurchase program, remaining authorized repurchase amount $ 125,000,000   $ 125,000,000
Restricted stock units (RSUs) [Member]      
Class Of Stock [Line Items]      
Share-based compensation arrangement by share-based payment award, non-option equity instruments, outstanding, number 1,000,000   1,000,000
Performance share units (PSUs) [Member]      
Class Of Stock [Line Items]      
Share-based compensation arrangement by share-based payment award, non-option equity instruments, outstanding, number 54,431   54,431