Business Combination ,Aggregate Earnout Obligation, Maximum

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Business Combination Aggregate Earnout Obligation Recorded Maximum

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- Definition

Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]

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No definition available.

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- Definition

Liabilities Recorded on Self-Insurance

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- Definition

Micro captive Insurance Companies Managed

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No definition available.

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- Definition

Micro-captive operations, EBITDAC.

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No definition available.

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- Definition

Micro-captive operations net earnings.

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No definition available.

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- Definition

Number of employees.

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No definition available.

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- Definition

Number Of Letter Of Credit Issued

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Number of square feet.

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No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 3
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- Definition

A credit or adjustment for government or taxing authority authorized decrease in taxes owed as a result of meeting certain tax policy conditions.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The number of businesses acquired by the entity during the period.

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Present value of the accrual for product liability loss contingencies as of the balance sheet date (if the accrual qualifies for discounting).

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Amount of insurance benefit, claim, loss and settlement expenses incurred, as disclosed in supplementary insurance information.

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Amount of claim and benefit payable classified as other, disclosed in supplementary insurance information.

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Commitments, Contingencies and Off-Balance Sheet Arrangements - Additional Information (Detail)	3 Months Ended		9 Months Ended		12 Months Ended	213 Months Ended
	Sep. 30, 2019 USD ($) ft² LetterOfCredit Entity	Sep. 30, 2018 Entity	Sep. 30, 2019 USD ($) ft² LetterOfCredit Employees Entity Companies	Sep. 30, 2018 Entity	Dec. 31, 2018 USD ($)	Sep. 30, 2019 USD ($) ft² LetterOfCredit Entity
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Number of square feet \| ft²	360,000		360,000			360,000
Number of employees will accommodate at new facility \| Employees			2,000
Number of companies acquired \| Entity	29	38	86	95		545
Aggregate amount of maximum earnout obligations related to acquisitions			$ 764,700,000
Aggregate amount of maximum earnout obligations related to acquisitions, recorded in consolidated balance sheet			419,400,000
Income tax credits and adjustments			108,000,000.0
Errors And Omissions [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Insurance claims, amount retained			5,000,000.0
Amount of losses in excess of retained amounts	$ 350,000,000.0		350,000,000.0			$ 350,000,000.0
Letter of Credit [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Debt	$ 900,000		$ 900,000			$ 900,000
Number of letters of credit issued \| LetterOfCredit	1		1			1
Letter of Credit [Member] \| Security Deposit [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Debt	$ 500,000		$ 500,000			$ 500,000
Number of letters of credit issued \| LetterOfCredit	1		1			1
Letter of Credit [Member] \| Self-Insurance Deductibles [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Debt	$ 10,100,000		$ 10,100,000			$ 10,100,000
Liabilities recorded on self-insurance	$ 16,100,000		$ 16,100,000			$ 16,100,000
Number of letters of credit issued \| LetterOfCredit	2		2			2
Letter of Credit [Member] \| Rent-A-Captive Facility [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Debt	$ 6,300,000		$ 6,300,000			$ 6,300,000
Number of letters of credit issued \| LetterOfCredit	7		7			7
Minimum [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Ownership interest	1.00%		1.00%			1.00%
Number of micro-captive insurance companies organized or managed \| Companies			100
Minimum [Member] \| Errors And Omissions [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Actuarial range value	$ 800,000		$ 800,000			$ 800,000
Maximum [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Ownership interest	50.00%		50.00%			50.00%
Micro-captive operations, net earnings					$ 3,200,000
Micro-captive operations, EBITDAC					$ 5,000,000.0
Maximum [Member] \| Errors And Omissions [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Actuarial range value	$ 8,600,000		$ 8,600,000			$ 8,600,000