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Face (par) amount of debt instrument at time of issuance.

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Fair Value Disclosures - Assets And Liabilities Measured At Fair Value On Recurring Basis (Details) - USD ($)	Jun. 30, 2020	Jun. 22, 2020	Dec. 31, 2019
Assets:
Assets measured at fair value on a recurring basis	$ 74,255,000		$ 77,254,000
Liabilities:
Liabilities measured at fair value on a recurring basis	1,838,224,000		981,270,000
Senior Notes \| Senior Notes Due 2025
Liabilities:
Aggregate principal amount	$ 800,000,000.0
Debt instrument, fixed interest rate	5.125%
Long-term debt carrying amount	$ 786,200,000		785,000,000.0
Senior Notes \| Senior Notes Due 2028
Liabilities:
Aggregate principal amount	800,000,000.0	$ 800,000,000.0
Debt instrument, fixed interest rate		4.50%
Long-term debt carrying amount	790,000,000.0
Fair Value, Inputs, Level 1
Assets:
Assets measured at fair value on a recurring basis	8,547,000		2,277,000
Fair Value, Inputs, Level 2
Assets:
Assets measured at fair value on a recurring basis	65,708,000		74,977,000
Liabilities:
Liabilities measured at fair value on a recurring basis	1,838,224,000		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	132,000		1,499,000
Fair Value, Inputs, Level 2 \| Interest rate swap contracts
Liabilities:
Liabilities measured at fair value on a recurring basis	128,713,000		64,831,000
Fair Value, Inputs, Level 2 \| Deferred compensation plan assets
Assets:
Assets measured at fair value on a recurring basis	65,637,000		73,419,000
Fair Value, Inputs, Level 2 \| Deferred compensation plan liabilities
Liabilities:
Liabilities measured at fair value on a recurring basis	78,883,000		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	820,920,000		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	$ 809,576,000		$ 0