Fair Value Disclosures - Assets And Liabilities Measured At Fair Value On Recurring Basis (Details) - USD ($)	Sep. 30, 2020	Sep. 28, 2020	Sep. 27, 2020	Jun. 22, 2020	Dec. 31, 2019
Assets:
Assets measured at fair value on a recurring basis	$ 78,649,000				$ 77,254,000
Liabilities:
Liabilities measured at fair value on a recurring basis	1,855,905,000				981,270,000
Senior Notes | Senior Notes Due 2025
Liabilities:
Aggregate principal amount	$ 800,000,000.0		$ 800,000,000.0
Debt instrument, fixed interest rate	5.125%
Long-term debt carrying amount					785,000,000.0
Senior Notes | Senior Notes Due 2028
Liabilities:
Aggregate principal amount	$ 800,000,000.0			$ 800,000,000
Debt instrument, fixed interest rate				4.50%
Long-term debt carrying amount	790,500,000
Senior Notes | Senior Notes Due 2030
Liabilities:
Aggregate principal amount	800,000,000.0	$ 800,000,000
Debt instrument, fixed interest rate		3.75%
Long-term debt carrying amount	790,500,000
Fair Value, Inputs, Level 1
Assets:
Assets measured at fair value on a recurring basis	9,010,000				2,277,000
Fair Value, Inputs, Level 2
Assets:
Assets measured at fair value on a recurring basis	69,639,000				74,977,000
Liabilities:
Liabilities measured at fair value on a recurring basis	1,855,905,000				981,270,000
Fair Value, Inputs, Level 2 | Foreign currency forward contracts
Assets:
Assets measured at fair value on a recurring basis	71,000				1,558,000
Liabilities:
Liabilities measured at fair value on a recurring basis	176,000				1,499,000
Fair Value, Inputs, Level 2 | Interest rate swap contracts
Liabilities:
Liabilities measured at fair value on a recurring basis	120,532,000				64,831,000
Fair Value, Inputs, Level 2 | Deferred compensation plan assets
Assets:
Assets measured at fair value on a recurring basis	69,568,000				73,419,000
Fair Value, Inputs, Level 2 | Deferred compensation plan liabilities
Liabilities:
Liabilities measured at fair value on a recurring basis	84,053,000				79,556,000
Fair Value, Inputs, Level 2 | Debt | Senior Notes | Senior Notes Due 2025
Liabilities:
Liabilities measured at fair value on a recurring basis	0				835,384,000
Fair Value, Inputs, Level 2 | Debt | Senior Notes | Senior Notes Due 2028
Liabilities:
Liabilities measured at fair value on a recurring basis	840,392,000				0
Fair Value, Inputs, Level 2 | Debt | Senior Notes | Senior Notes Due 2030
Liabilities:
Liabilities measured at fair value on a recurring basis	$ 810,752,000				$ 0