Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation Narrative (Details)

v3.7.0.1
Stock-Based Compensation Narrative (Details) - 2007 Stock Incentive Plan - shares
3 Months Ended
May 12, 2016
Mar. 31, 2017
Mar. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized 500,000    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized   2,730,320  
Performance stock units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period   166,149 0