Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Identified Intangible Assets - Additional Information (Details)

v3.7.0.1
Goodwill and Identified Intangible Assets - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Acquired Indefinite-lived Intangible Assets [Line Items]        
Amortization of intangible assets $ 6.5 $ 6.3 $ 12.6 $ 12.3