Balance Sheet Details (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Property Plant And Equipment [Line Items]
Depreciation expense	$ 57,100,000	$ 49,800,000	$ 52,300,000
Assets recorded under capital leases	1,500,000	1,500,000
Accelerated depreciation	0	0	4,200,000
Capitalized internal use software development costs	24,200,000	17,600,000
Capitalized internal use software amortization	7,400,000	7,300,000	7,700,000
Amortization expense related to intangible assets	45,600,000	$ 16,100,000	13,600,000
Definite-lived intangible assets	241,300,000
Goodwill	$ 330,488,000
Service Life [Member]
Property Plant And Equipment [Line Items]
Change in accounting estimate, effect on net income			$ 1,800,000
Change in accounting estimate on earning per share			$ 0.04