Revenue (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Total net revenues	$ 812,111,000	$ 798,929,000	$ 1,587,877,000	$ 1,659,874,000
Short-term contract assets	51,300,000		51,300,000		$ 37,300,000
Long-term contract assets	43,100,000		43,100,000		41,700,000
Current portion of deferred revenues	1,541,606,000		1,541,606,000		1,510,216,000
Long-term portion of deferred revenues	350,345,000		350,345,000		392,360,000
Deferred revenue recognized	541,400,000		950,200,000
Impairment charges related to contract assets	0	0	0	0
Short-term contract acquisition costs	73,500,000		73,500,000		71,500,000
Long-term contract acquisition costs	129,600,000		129,600,000		$ 124,700,000
Impairment of capitalized costs	0	0	0	0
Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Total net revenues	142,835,000	195,695,000	284,634,000	475,106,000
Transferred over Time [Member]
Disaggregation of Revenue [Line Items]
Total net revenues	669,276,000	603,234,000	1,303,243,000	1,184,768,000
Sales, Marketing and Services Expense [Member]
Disaggregation of Revenue [Line Items]
Amortization of capitalized contract acquisition costs	$ 18,900,000	$ 13,800,000	$ 37,200,000	$ 26,900,000
Minimum [Member]
Disaggregation of Revenue [Line Items]
Average customer life			2 years
Maximum [Member]
Disaggregation of Revenue [Line Items]
Average customer life			7 years
Customer Relationships [Member] | Minimum [Member]
Disaggregation of Revenue [Line Items]
Average customer life			3 years
Customer Relationships [Member] | Maximum [Member]
Disaggregation of Revenue [Line Items]
Average customer life			5 years