Share-Based Compensation - Summary of Performance-Based Awards Granted (Details) - shares	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares Granted	687,685	613,473
Performance Shares | 2016 Performance Share Plan | Performance Period Ending December 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares Granted	122,284
Performance Shares | 2016 Performance Share Plan | Performance Period Ending December 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares Granted	15,605
Performance Shares | 2016 Performance Share Plan | Performance Period Ending December 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares Granted	29,332
Performance Shares | 2016 Performance Share Plan | Performance Period Ending December 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares Granted	78,220
Performance Shares | 2016 Performance Share Plan | Performance Period Ending December 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares Granted	14,940
Performance Shares | 2016 Performance Share Plan | Performance Period Ending December 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares Granted	144,995
Performance Shares | 2016 Performance Share Plan | Performance Period Ending December 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares Granted	67,517
Performance Shares | 2015 Performance Share Plan | Performance Period Ending December 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares Granted	135,289
Performance Shares | 2015 Performance Share Plan | Performance Period Ending December 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares Granted	165,543