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Long-Term Debt and Short-Term Borrowings - Long-Term Debt - Additional Information (Detail)		9 Months Ended
	Oct. 31, 2017 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 EUR (€)	Dec. 31, 2019
Debt Instrument [Line Items]
Borrowings from line of credit		$ 835,671,000	$ 2,683,000,000
Minimum coverage ratio of EBITDA to total interest expense expressed in percentage		200.00%
Maximum leverage ratio of total debt less available cash to EBITDA expressed in percentage		425.00%
Maximum leverage ratio during first four quarter that qualified acquisition is consummated		475.00%
Coverage ratio of EBITDA to total interest expense expressed in percentage		2368.00%		2368.00%
Leverage ratio of total debt less available cash to EBITDA expressed in percentage		25.00%		25.00%
4.875% Senior Notes [Member]
Debt Instrument [Line Items]
Interest rate of long-term debt		4.875%		4.875%	4.875%
5.25% Senior Notes [Member]
Debt Instrument [Line Items]
Interest rate of long-term debt		5.25%		5.25%	5.25%
Tranche A term loan facility [Member] | 2019 Credit Agreement [Member]
Debt Instrument [Line Items]
Borrowings from line of credit	$ 300,000,000.0
Amounts available to borrow under credit agreement		$ 300,000,000.0
Termination date		Mar. 04, 2024
Maximum leverage ratio		250.00%
Revolving credit facility [Member] | 2019 Credit Agreement [Member]
Debt Instrument [Line Items]
Amounts available to borrow under credit agreement		$ 2,800,000,000
Termination date		Mar. 04, 2024
Euro term loan facility [Member] | 2019 Credit Agreement [Member]
Debt Instrument [Line Items]
Term loan facility due and payable | €				€ 400,000,000.0
Debt instrument, maturity date		Dec. 20, 2023

X

- Definition

Ratio of EBITDA as defined in the Credit Agreement to interest expense calculated over a trailing twelve month period.

+ References

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- Definition

Leverage ratio of total debt to EBITDA.

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Maximum leverage ratio.

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- Definition

Maximum leverage ratio during first four quarter that qualified acquisition is consummated.

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- Definition

This element represents the maximum ratio of debt less available cash to earnings before interest, taxes, depreciation and amortization (EBITDA) allowed in the reporting entity's credit agreement.

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This element represents the minimum ratio of earnings before interest, taxes, depreciation and amortization (EBITDA) to total interest expense required in the reporting entity's credit agreement.

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- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Date the credit facility terminates, in CCYY-MM-DD format.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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