Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Narrative (Details)

v3.7.0.1
Summary of Significant Accounting Policies - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2017
Jan. 01, 2017
ASU 2016-09 | Additional Paid-in Capital    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Cumulative effect   $ 1.2
ASU 2016-09 | Pro Forma    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Deferred tax asset   $ 142.0
Minimum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Requisite service period 3 years  
Maximum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Requisite service period 4 years