Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Identified Intangible Assets - Additional Information (Details)

v3.10.0.1
Goodwill and Identified Intangible Assets - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]        
Amortization of intangible assets $ 14.7 $ 6.5 $ 28.5 $ 12.6