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Business Combinations - Acquisition Method for Recording Business Combinations (Detail) shares in Thousands | 6 Months Ended
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Jun. 30, 2023 USD ($) shares
First Ireland Risk Management Ltd [Member] |
Business Acquisition [Line Items] |
Cash Paid | $ 86,400,000
Escrow Deposited | 5,300,000
Recorded Earnout Payable | 5,900,000
Total Recorded Purchase Price | 97,600,000
Maximum Potential Earnout Payable | 6,600,000
BCHR Holdings, L.P. dba Buck [Member] |
Business Acquisition [Line Items] |
Cash Paid | 600,800,000
Accrued Liability | 24,700,000
Escrow Deposited | 19,500,000
Total Recorded Purchase Price | $ 645,000,000
Boley-Featherston-Huffman & Deal Co. [Member] |
Business Acquisition [Line Items] |
Common Shares Issued | shares | 243
Common Share Value | $ 45,200,000
Cash Paid | 8,800,000
Escrow Deposited | 6,000,000
Recorded Earnout Payable | 7,900,000
Total Recorded Purchase Price | 67,900,000
Maximum Potential Earnout Payable | 15,000,000
Tay River Holdings Limited [Member] |
Business Acquisition [Line Items] |
Cash Paid | 40,300,000
Accrued Liability | 4,300,000
Escrow Deposited | 2,400,000
Recorded Earnout Payable | 32,400,000
Total Recorded Purchase Price | 79,400,000
Maximum Potential Earnout Payable | $ 88,700,000
Insurance By Ken Brown [Member] |
Business Acquisition [Line Items] |
Common Shares Issued | shares | 273
Common Share Value | $ 53,900,000
Cash Paid | 1,800,000
Escrow Deposited | 2,900,000
Recorded Earnout Payable | 13,600,000
Total Recorded Purchase Price | 72,200,000
Maximum Potential Earnout Payable | $ 17,500,000
RHP General Agency [Member] |
Business Acquisition [Line Items] |
Common Shares Issued | shares | 335
Common Share Value | $ 65,700,000
Cash Paid | 1,300,000
Escrow Deposited | 5,000,000
Recorded Earnout Payable | 3,300,000
Total Recorded Purchase Price | 75,300,000
Maximum Potential Earnout Payable | $ 11,000,000
Nineteen Other Acquisitions [Member] |
Business Acquisition [Line Items] |
Common Shares Issued | shares | 14
Cash Paid | $ 311,800,000
Accrued Liability | 5,700,000
Escrow Deposited | 12,300,000
Recorded Earnout Payable | 61,700,000
Total Recorded Purchase Price | 391,500,000
Maximum Potential Earnout Payable | $ 96,200,000
2023 Acquisitions [Member] |
Business Acquisition [Line Items] |
Common Shares Issued | shares | 865
Common Share Value | $ 164,800,000
Cash Paid | 1,051,200,000
Accrued Liability | 34,700,000
Escrow Deposited | 53,400,000
Recorded Earnout Payable | 124,800,000
Total Recorded Purchase Price | 1,428,900,000
Maximum Potential Earnout Payable | $ 235,000,000

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- Definition Number of shares of equity interests issued or issuable to acquire entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 805 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479581/805-30-50-1 + Details
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- Definition The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 954 -SubTopic 440 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480327/954-440-50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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