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Share-Based Compensation - Additional Information (Details)
$ in Millions
12 Months Ended
Dec. 31, 2016
USD ($)
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of shares authorized under plan 10,600,000
Long-term equity incentive plan, termination date May 1, 2023
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant 1,200,000
Performance Units  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Fair value of awards vested | $ $ 1.1
Stock Issued During Period, Shares, Restricted Stock Award, Gross 21,111
Common Stock Dividends, Shares 507