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Employee Benefit Plans - Share-Based Awards Granted (Details)
9 Months Ended
Sep. 30, 2017
$ / shares
shares
Performance Share Units [Member]  
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]  
Vesting Period 3 years
Maximum [Member] | Performance Share Units [Member]  
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]  
Vesting Percentage 200.00%
Minimum [Member] | Performance Share Units [Member]  
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]  
Vesting Percentage 0.00%
January 3, 2017 - 33% per year over three years [Member]  
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]  
Date of Grant Jan. 03, 2017
Shares | shares 671,771
Grant Date Fair Value Per Share | $ / shares $ 8.82
Vesting Percentage 33.00%
Vesting Period 3 years
January 3, 2017 - 100% on January 1, 2020 [Member]  
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]  
Date of Grant Jan. 03, 2017
Shares | shares 671,771
Grant Date Fair Value Per Share | $ / shares $ 12.64
Vesting Percentage 100.00%
Vesting Date Jan. 01, 2020
January 3, 2017 - 100% on January 1, 2019 [Member]  
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]  
Date of Grant Jan. 03, 2017
Shares | shares 9,956
Grant Date Fair Value Per Share | $ / shares $ 8.82
Vesting Percentage 100.00%
Vesting Date Jan. 01, 2019
April 3, 2017 - 100% on January 1, 2019 [Member]  
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]  
Date of Grant Apr. 03, 2017
Shares | shares 8,004
Grant Date Fair Value Per Share | $ / shares $ 7.77
Vesting Percentage 100.00%
Vesting Date Jan. 01, 2019
July 3, 2017 - 100% on January 1, 2019 [Member]  
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]  
Date of Grant Jul. 03, 2017
Shares | shares 14,018
Grant Date Fair Value Per Share | $ / shares $ 5.64
Vesting Percentage 100.00%
Vesting Date Jan. 01, 2019