Business acquisition earn out payables.

No definition available.

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- Definition

Business acquisitions purchase price allocation adjustment purchase price.

+ References

No definition available.

+ Details

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- Definition

Business Combination Pro Forma Information Income Loss Before Income Taxes Of Acquiree Since Acquisition Date Actual

+ References

No definition available.

+ Details

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- Definition

Earn out payable not deductible until earned paid

+ References

No definition available.

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- Definition

Maximum Future Contingency Payments Acquisitions

+ References

No definition available.

+ Details

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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- Definition

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.

+ References

No definition available.

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- Definition

The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

+ Details

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- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

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- Definition

Amount of assets acquired at the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472

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- Definition

Fair value portion of asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585

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Business Combinations - Additional Information (Detail)	3 Months Ended	6 Months Ended
Business Combinations - Additional Information (Detail)	Jun. 30, 2017 USD ($)	Jun. 30, 2017 USD ($) acquisition	Jun. 30, 2016 USD ($) acquisition	Apr. 01, 2016 USD ($)	Jan. 01, 2016 USD ($)	Apr. 01, 2015 USD ($)	Jan. 01, 2015 USD ($)
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	$ 24,661,000	$ 24,661,000
Number of acquisitions \| acquisition		3	5
Aggregate purchase price of acquisitions		$ 1,387,569
Payments to Acquire Businesses, Gross		11,526,000	$ 109,400,000
Goodwill assigned	16,702,000	16,702,000
Goodwill currently deductible for income tax purposes	16,420,000	16,420,000
Goodwill related to the recorded earn-out payables	283,000	283,000
Total revenues related to acquisitions	454,000	454,000
Income before income taxes related to acquisitions	115,000	115,000
Estimated acquisition earn-out payables	57,943,000	57,943,000	$ 73,454,000	$ 57,408,000	$ 63,821,000	$ 69,095,000	$ 78,387,000
Maximum Future Contingency payments Acquisitions	100,200,000	100,200,000
Accounts payable
Business Acquisition [Line Items]
Estimated acquisition earn-out payables	44,000,000	$ 44,000,000
Purchased customer accounts
Business Acquisition [Line Items]
Weighted average life (years)		15 years
Non-compete agreements
Business Acquisition [Line Items]
Weighted average life (years)		5 years
Services
Business Acquisition [Line Items]
Goodwill assigned	7,539,000	$ 7,539,000
National Programs
Business Acquisition [Line Items]
Goodwill assigned	7,314,000	7,314,000
Wholesale Brokerage
Business Acquisition [Line Items]
Goodwill assigned	878,000	878,000
Services [Member]
Business Acquisition [Line Items]
Goodwill assigned	689,000	689,000
Other non-current liability
Business Acquisition [Line Items]
Estimated acquisition earn-out payables	13,900,000	$ 13,900,000
Business Combinations - Asset Deals [Member]
Business Acquisition [Line Items]
Number of acquisitions \| acquisition		3
Other Acquisitions [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	24,661,000	$ 24,661,000
Goodwill assigned	$ 16,702,000	$ 16,702,000