Brown & Brown (BRO) 10-Q 12 May 14 2014 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2014	5-May-14
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	31-Mar-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q1	'
Trading Symbol	'BRO	'
Entity Registrant Name	'BROWN & BROWN INC	'
Entity Central Index Key	'0000079282	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	144,974,572

CONDENSED_CONSOLIDATED_STATEME

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
REVENUES	'	'
Commissions and fees	$362,007	$333,793
Investment income	103	186
Other income, net	1,484	1,033
Total revenues	363,594	335,012
EXPENSES	'	'
Employee compensation and benefits	184,110	159,498
Non-cash stock-based compensation	7,515	3,850
Other operating expenses	52,461	46,339
Amortization	17,876	16,161
Depreciation	4,640	4,167
Interest	4,072	3,984
Change in estimated acquisition earn-out payables	6,083	1,522
Total expenses	276,757	235,521
Income before income taxes	86,837	99,491
Income taxes	34,422	39,360
Net income	$52,415	$60,131
Net income per share:	'	'
Basic	$0.36	$0.42
Diluted	$0.36	$0.41
Dividends declared per share	$0.10	$0.09

CONDENSED_CONSOLIDATED_BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current Assets:	'	'
Cash and cash equivalents	$250,017	$202,952
Restricted cash and investments	252,872	250,009
Short-term investments	10,967	10,624
Premiums, commissions and fees receivable	404,471	395,915
Deferred income taxes	12,380	29,276
Other current assets	33,648	39,260
Total current assets	964,355	928,036
Fixed assets, net	74,576	74,733
Goodwill	2,006,491	2,006,173
Amortizable intangible assets, net	601,574	618,888
Other assets	27,293	21,678
Total assets	3,674,289	3,649,508
Current Liabilities:	'	'
Premiums payable to insurance companies	532,240	534,360
Premium deposits and credits due customers	91,395	80,959
Accounts payable	62,416	34,158
Accrued expenses and other liabilities	106,441	157,400
Current portion of long-term debt	'	100,000
Total current liabilities	792,492	906,877
Long-term debt	480,000	380,000
Deferred income taxes, net	285,514	291,704
Other liabilities	63,423	63,786
Shareholders' Equity:	'	'
Common stock, par value $0.10 per share; authorized 280,000 shares; issued and outstanding 145,409 at 2014 and 145,419 at 2013	14,541	14,542
Additional paid-in capital	379,811	371,960
Retained earnings	1,658,508	1,620,639
Total shareholders' equity	2,052,860	2,007,141
Total liabilities and shareholders' equity	$3,674,289	$3,649,508

CONDENSED_CONSOLIDATED_BALANCE1

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Statement Of Financial Position [Abstract]	'	'
Common stock, par value	$0.10	$0.10
Common stock, shares authorized	280,000	280,000
Common stock, shares issued	145,409	145,419
Common stock, shares outstanding	145,409	145,419

CONDENSED_CONSOLIDATED_STATEME1

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:	'	'
Net income	$52,415	$60,131
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Amortization	17,876	16,161
Depreciation	4,640	4,167
Non-cash stock-based compensation	7,515	3,850
Change in estimated acquisition earn-out payables	6,083	1,522
Deferred income taxes	10,706	15,620
Income tax benefit from exercise of shares from the stock benefit plans	-2,258	-252
Net gain on sales of investments, fixed assets and customer accounts	-656	-383
Payments on acquisition earn-outs in excess of original estimated payables	'	-1,618
Changes in operating assets and liabilities, net of effect from acquisitions and divestitures:	'	'
Restricted cash and investments (increase)	-2,863	-22,204
Premiums, commissions and fees receivable (increase) decrease	-8,172	262
Other assets decrease	128	12,919
Premiums payable to insurance companies (decrease) increase	-2,120	36,586
Premium deposits and credits due customers increase (decrease)	10,436	-7,524
Accounts payable increase	31,100	19,308
Accrued expenses and other liabilities (decrease) increase	-50,959	5,788
Other liabilities (decrease)	-6,726	-7,312
Net cash provided by operating activities	67,145	137,021
Cash flows from investing activities:	'	'
Additions to fixed assets	-4,727	-2,947
Payments for businesses acquired, net of cash acquired	-1,013	-61
Proceeds from sales of fixed assets and customer accounts	829	243
Purchases of investments	-5,421	-1,629
Proceeds from sales of investments	5,078	2,585
Net cash used in investing activities	-5,254	-1,809
Cash flows from financing activities:	'	'
Payments on acquisition earn-outs	-615	-2,701
Income tax benefit from exercise of shares from the stock benefit plans	2,258	252
Issuances of common stock for employee stock benefit plans	720	625
Repurchase stock benefit plan shares for employees to fund tax withholdings	-2,643	-50
Cash dividends paid	-14,546	-12,953
Net cash used in financing activities	-14,826	-14,827
Net increase in cash and cash equivalents	47,065	120,385
Cash and cash equivalents at beginning of period	202,952	219,821
Cash and cash equivalents at end of period	$250,017	$340,206

Nature_of_Operations

Nature of Operations	3 Months Ended
	Mar. 31, 2014
Accounting Policies [Abstract]	'
Nature of Operations	'
	NOTE 1· Nature of Operations
	Brown & Brown, Inc., a Florida corporation, and its subsidiaries (collectively, “Brown & Brown” or the “Company”) is a diversified insurance agency, wholesale brokerage, insurance programs and services organization that markets and sells to its customers insurance products and services, primarily in the property and casualty area. Brown & Brown’s business is divided into four reportable segments: the Retail Division, which provides a broad range of insurance products and services to commercial, public entity, professional and individual customers; the Wholesale Brokerage Division, which markets and sells excess and surplus commercial insurance and reinsurance, primarily through independent agents and brokers; the National Programs Division, which provides professional liability and related package products for certain professionals delivered through nationwide networks of independent agents, and markets targeted products and services designated for specific industries, trade groups, governmental entities and market niches; and the Services Division, which provides insurance-related services, including third-party claims administration and comprehensive medical utilization management services in both the workers’ compensation and all-lines liability arenas, as well as Medicare set-aside services, Social Security disability and Medicare benefits advocacy services, and catastrophe claims adjusting services.

Basis_of_Financial_Reporting

Basis of Financial Reporting	3 Months Ended
	Mar. 31, 2014
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]	'
Basis of Financial Reporting	'
	NOTE 2· Basis of Financial Reporting
	The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions for Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto set forth in the Company’s Annual Report on Form 10-K for the year ended December 31, 2013.
	Results of operations for the three months ended March 31, 2014 are not necessarily indicative of the results that may be expected for the year ending December 31, 2014.

Net_Income_Per_Share

Net Income Per Share	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
Net Income Per Share	'
	NOTE 3· Net Income Per Share
	Effective in 2009, the Company adopted new Financial Accounting Standards Board (“FASB”) authoritative guidance that states that unvested share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents are participating securities and, therefore, are included in computing earnings per share (“EPS”) pursuant to the two-class method. The two-class method determines EPS for each class of common stock and participating securities according to dividends or dividend equivalents and their respective participation rights in undistributed earnings. Performance stock shares granted to employees under the Company’s Performance Stock Plan and under the Company’s Stock Incentive Plan are considered participating securities as they receive non-forfeitable dividend equivalents at the same rate as common stock.
	Basic EPS is computed based on the weighted average number of common shares (including participating securities) issued and outstanding during the period. Diluted EPS is computed based on the weighted average number of common shares issued and outstanding plus equivalent shares, assuming the exercise of stock options. The dilutive effect of stock options is computed by application of the treasury-stock method. The following is a reconciliation between basic and diluted weighted average shares outstanding:
		For the three months
		ended March 31,
	(in thousands, except per share data)	2014			2013
	Net income	$	52,415		$	60,131
	Net income attributable to unvested awarded performance stock		(1,376	)		(1,308	)
	Net income attributable to common shares	$	51,039		$	58,823
	Weighted average number of common shares outstanding – basic		145,429			143,926
	Less unvested awarded performance stock included in weighted average number of common shares outstanding – basic		(3,819	)		(3,130	)
	Weighted average number of common shares outstanding for basic earnings per common share		141,610			140,796
	Dilutive effect of stock options		1,699			2,151
	Weighted average number of shares outstanding – diluted		143,309			142,947
	Net income per share:
	Basic	$	0.36		$	0.42
	Diluted	$	0.36		$	0.41

Business_Combinations

Business Combinations	3 Months Ended
	Mar. 31, 2014
Business Combinations [Abstract]	'
Business Combinations	'
	NOTE 4· Business Combinations
	Acquisitions in 2014
	During the three months ended March 31, 2014, Brown & Brown acquired the assets and assumed certain liabilities of one insurance intermediary. Additionally, miscellaneous adjustments were recorded to the purchase price allocation of certain acquisitions completed within the last twelve months as permitted by ASC Topic 805 — Business Combinations (“ASC 805”). The aggregate purchase price of the acquisition and the miscellaneous adjustments totaled $1,324,000, including $1,013,000 of cash payments, the assumption of $31,000 of liabilities and $280,000 of recorded earn-out payables. This acquisition was acquired primarily to expand Brown & Brown’s core business and to attract and hire high-quality individuals. Acquisition purchase prices are typically based on a multiple of average annual operating profit earned over a one- to three-year period within a minimum and maximum price range. The recorded purchase price for all acquisitions consummated after January 1, 2009 included an estimation of the fair value of liabilities associated with any potential earn-out provisions. Subsequent changes in the fair value of earn-out obligations will be recorded in the Consolidated Statement of Income when incurred.
	The fair value of earn-out obligations is based on the present value of the expected future payments to be made to the sellers of the acquired businesses in accordance with the provisions outlined in the respective purchase agreements. In determining fair value, the acquired business’s future performance is estimated using financial projections developed by management for the acquired business and reflects market participant assumptions regarding revenue growth and/or profitability. The expected future payments are estimated on the basis of the earn-out formula and performance targets specified in each purchase agreement compared to the associated financial projections. These payments are then discounted to present value using a risk-adjusted rate that takes into consideration the likelihood that the forecasted earn-out payments will be made.
	Based on the acquisition date and the complexity of the underlying valuation work, certain amounts included in the Company’s Condensed Consolidated Financial Statements may be provisional and thus subject to further adjustments within the permitted measurement period, as defined in ASC 805. For the three months ended March 31, 2014, several adjustments were made within the permitted measurement period that resulted in an increase in the aggregate purchase price of the affected acquisitions of $21,000 relating to the assumption of certain liabilities.
	The following table summarizes the aggregate purchase price allocations made as of the date of acquisition for the current-year acquisition and adjustments made during the measurement period for prior-year acquisitions:
	(in thousands)
	Name	Business		Date of		Cash				Recorded				Net Assets
		Segment		Acquisition		Paid				Earn-out				Acquired
										Payable
	Acquisition	Retail		Various		$	1,013			$	280			$	1,293
	The following table summarizes the adjustments made to the estimated fair values along with the aggregate assets and liabilities acquired as of the date of each acquisition:
	(in thousands)
	Other current assets	$	384
	Fixed assets		4
	Goodwill		318
	Purchased customer accounts		607
	Non-compete agreements		11
	Total assets acquired		1,324
	Other current liabilities		(31	)
	Net assets acquired	$	1,293
	The weighted average useful lives for the acquired amortizable intangible assets are as follows: purchased customer accounts, 15.0 years; and non-compete agreements, 5.0 years.
	Goodwill of $318,000, was allocated to the Retail Division. Of the total goodwill of $318,000, $38,000 is currently deductible for income tax purposes and $280,000 is non-deductible as it relates to the earn-out payables and will not be deductible until it is earned and paid.
	The results of operations for the acquisition completed during 2014 have been combined with those of the Company since the acquisition date. The total revenues and income before income taxes from the acquisition completed through March 31, 2014, included in the Condensed Consolidated Statement of Income for the three months ended March 31, 2014, were $6,000 and $1,000, respectively. If the acquisition had occurred as of the beginning of the period, the Company’s results of operations would be as shown in the following table. These unaudited pro forma results are not necessarily indicative of the actual results of operations that would have occurred had the acquisition actually been made at the beginning of the respective periods.
	(UNAUDITED)	For the three months
		ended March 31,
	(in thousands, except per share data)	2014				2013
	Total revenues	$	363,739			$	335,253
	Income before income taxes	$	86,883			$	99,566
	Net income	$	52,443			$	60,176
	Net income per share:
	Basic	$	0.36			$	0.42
	Diluted	$	0.36			$	0.41
	Weighted average number of shares outstanding:
	Basic		141,610				140,796
	Diluted		143,309				142,947
	Acquisitions in 2013
	During the three months ended March 31, 2013, Brown & Brown did not acquire any insurance intermediaries, however there were miscellaneous adjustments to the purchase price allocation of certain prior acquisitions acquired within the then-preceding twelve months as permitted by ASC 805. Acquisition purchase prices are typically based on a multiple of average annual operating profit earned over a one- to three-year period within a minimum and maximum price range. The recorded purchase price for all acquisitions consummated after January 1, 2009 included an estimation of the fair value of liabilities associated with any potential earn-out provisions. Subsequent changes in the fair value of earn-out obligations will be recorded in the consolidated statement of income when incurred.
	The fair value of earn-out obligations is based on the present value of the expected future payments to be made to the sellers of the acquired businesses in accordance with the provisions outlined in the respective purchase agreements. In determining fair value, the acquired business’s future performance is estimated using financial projections developed by management for the acquired business and reflects market participant assumptions regarding revenue growth and/or profitability. The expected future payments are estimated on the basis of the earn-out formula and performance targets specified in each purchase agreement compared to the associated financial projections. These payments are then discounted to present value using a risk-adjusted rate that takes into consideration the likelihood that the forecasted earn-out payments will be made.
	Based on the acquisition date and the complexity of the underlying valuation work, certain amounts included in the Company’s Condensed Consolidated Financial Statements may be provisional and thus subject to further adjustments within the permitted measurement period, as defined in ASC 805. For the three months ended March 31, 2013, several adjustments were made within the permitted measurement period that resulted in reduction of the aggregate purchase price of the affected acquisitions by $1,071,000, including $61,000 of cash payments, a reduction of $454,000 in other payables, the assumption of $43,000 of liabilities and the reduction of $721,000 in recorded earn-out payables.
	The following table summarizes the adjustments made to the aggregate purchase price allocations as of the date of each acquisition:
	(in thousands)
	Name	Business		2012				Cash				Other				Recorded				Net Assets
		Segment		Date of				Paid				Payable				Earn-out				Acquired
				Acquisition												Payable
	Arrowhead General Insurance Agency Superholding Corporation	National			January 9			$	—			$	(454	)		$	—			$	(454	)
		Programs;
		Services
	Insurcorp & GGM Investments LLC	Retail			1-May				—				—				(834	)			(834	)
	Richard W. Endlar Insurance Agency, Inc.	Retail			1-May				—				—				220				220
	Texas Security General Insurance Agency, Inc.	Wholesale/			1-Sep				—				—				(107	)			(107	)
		Brokerage
	Other	Various			Various				61				—				—				61
	Total							$	61			$	(454	)		$	(721	)		$	(1,114	)
	The following table summarizes the adjustments made to the estimated fair values of the aggregate assets and liabilities acquired as of the date of each acquisition:
	(in thousands)	Arrowhead				Insurcorp				Endlar				Texas				Other				Total
														Security
	Other current assets	$	—			$	—			$	—			$	25			$	1,419			$	1,444
	Goodwill		(454	)			(566	)			216				(843	)			(1,214	)			(2,861	)
	Purchased customer accounts		—				(268	)			4				708				(98	)			346
	Total assets acquired		(454	)			(834	)			220				(110	)			107				(1,071	)
	Other current liabilities		—				—				—				3				(46	)			(43	)
	Net assets acquired	$	(454	)		$	(834	)		$	220			$	(107	)		$	61			$	(1,114	)
ASC 805 is the authoritative guidance requiring an acquirer to recognize 100% of the fair values of acquired assets, including goodwill, and assumed liabilities (with only limited exceptions) upon initially obtaining control of an acquired entity. Additionally, the fair value of contingent consideration arrangements (such as earn-out purchase arrangements) at the acquisition date must be included in the purchase price consideration. As a result, the recorded purchase prices for all acquisitions consummated after January 1, 2009 include an estimation of the fair value of liabilities associated with any potential earn-out provisions. Subsequent changes in these earn-out obligations will be recorded in the consolidated statement of income when incurred. Potential earn-out obligations are typically based upon future earnings of the acquired entities, usually between one and three years.
As of March 31, 2014 and 2013, the fair values of the estimated acquisition earn-out payables were re-evaluated and measured at fair value on a recurring basis using unobservable inputs (Level 3). The resulting additions, payments, and net changes, as well as the interest expense accretion on the estimated acquisition earn-out payables, for the three months ended March 31, 2014 and 2013, were as follows:
	For the three months
	ended March 31,
(in thousands)	2014				2013
Balance as of the beginning of the period	$	43,058			$	52,987
Additions to estimated acquisition earn-out payables		280				(721	)
Payments for estimated acquisition earn-out payables		(615	)			(4,319	)
Subtotal		42,723				47,947
Net change in earnings from estimated acquisition earn-out payables:
Change in fair value on estimated acquisition earn-out payables		5,603				997
Interest expense accretion		480				525
Net change in earnings from estimated acquisition earn-out payables		6,083				1,522
Balance as of March 31	$	48,806			$	49,469
Of the $48,806,000 estimated acquisition earn-out payables as of March 31, 2014, $18,171,000 was recorded as accounts payable and $30,635,000 was recorded as other non-current liabilities.
As of March 31, 2014, the maximum future contingency payments related to all acquisitions totaled $125,006,000, all of which relates to acquisitions consummated subsequent to January 1, 2009.

Goodwill

Goodwill	3 Months Ended
	Mar. 31, 2014
Goodwill And Intangible Assets Disclosure [Abstract]	'
Goodwill	'
	NOTE 5· Goodwill
	Goodwill is subject to at least an annual assessment for impairment by applying a fair value-based test. Brown & Brown completed its most recent annual assessment as of November 30, 2013, and identified no impairment as a result of the evaluation.
	The changes in the carrying value of goodwill by operating segment for the three months ended March 31, 2014 are as follows:
	(in thousands)	Retail		National		Wholesale		Services		Total
				Programs		Brokerage
	Balance as of January 1, 2014	$	1,131,257	$	467,144	$	287,242	$	120,530	$	2,006,173
	Goodwill of acquired businesses		318		—		—		—		318
	Balance as of March 31, 2014	$	1,131,575	$	467,144	$	287,242	$	120,530	$	2,006,491

Amortizable_Intangible_Assets

Amortizable Intangible Assets	3 Months Ended
	Mar. 31, 2014
Goodwill And Intangible Assets Disclosure [Abstract]	'
Amortizable Intangible Assets	'
	NOTE 6· Amortizable Intangible Assets
	Amortizable intangible assets at March 31, 2014 and December 31, 2013, consisted of the following:
			March 31, 2014									December 31, 2013
	(in thousands)		Gross		Accumulated			Net		Weighted		Gross		Accumulated			Net		Weighted
			Carrying		Amortization			Carrying		Average		Carrying		Amortization			Carrying		Average
			Value					Value		Life		Value					Value		Life
										(years)(1)									(years)(1)
	Purchased customer accounts		$	1,121,150	$	(522,671	)	$	598,479		14.9	$	1,120,719	$	(505,137	)	$	615,582		14.9
	Non-compete agreements			28,126		(25,031	)		3,095		7		28,115		(24,809	)		3,306		7
	Total		$	1,149,276	$	(547,702	)	$	601,574			$	1,148,834	$	(529,946	)	$	618,888
	Amortization expense for amortizable intangible assets for the years ending December 31, 2014, 2015, 2016, 2017 and 2018, is estimated to be $71,330,000, $70,047,000, $65,516,000, $62,807,000, and $57,482,000, respectively.
	-1	Weighted average life calculated as of the date of acquisition.

LongTerm_Debt

Long-Term Debt	3 Months Ended
	Mar. 31, 2014
Debt Disclosure [Abstract]	'
Long-Term Debt	'
	NOTE 7· Long-Term Debt
	Long-term debt at March 31, 2014 and December 31, 2013, consisted of the following:
	(in thousands)	2014		2013
	Unsecured senior notes	$	480,000	$	480,000
	Revolving credit facilities		—		—
	Total debt		480,000		480,000
	Less current portion		—		(100,000	)
	Long-term debt	$	480,000	$	380,000
	In July 2004, the Company completed a private placement of $200.0 million of unsecured senior notes (the “Notes”). The $200.0 million was divided into two series: (1) Series A, which closed on September 15, 2004, for $100.0 million due in 2011 and bore interest at 5.57% per year; and (2) Series B, which closed on July 15, 2004, for $100.0 million due in 2014 and bearing interest at 6.08% per year. The Company has used the proceeds from the Notes for general corporate purposes, including acquisitions and repayment of existing debt. On September 15, 2011, the $100.0 million of Series A Notes were redeemed on their normal maturity date through use of funds from the Master Agreement (defined below). As of March 31, 2014 and December 31, 2013, there was an outstanding balance on the Series B Notes of $100.0 million. It is management’s intention to pay off the Series B Notes with the proceeds of the new credit facility finalized in April 2014 (as described in the Note 11, Subsequent Events).
	On December 22, 2006, the Company entered into a Master Shelf and Note Purchase Agreement (the “Master Agreement”) with a national insurance company (the “Purchaser”). On September 30, 2009, the Company and the Purchaser amended the Master Agreement to extend the term of the agreement until August 20, 2012. The Purchaser also purchased Notes issued by the Company in 2004. The Master Agreement provides for a $200.0 million private uncommitted “shelf” facility for the issuance of senior unsecured notes over a three-year period, with interest rates that may be fixed or floating and with such maturity dates, not to exceed ten years, as the parties may determine. The Master Agreement includes various covenants, limitations and events of default similar to the Notes issued in 2004. The initial issuance of notes under the Master Agreement occurred on December 22, 2006, through the issuance of $25.0 million in Series C Senior Notes due December 22, 2016, with a fixed interest rate of 5.66% per year. On February 1, 2008, $25.0 million in Series D Senior Notes due January 15, 2015, with a fixed interest rate of 5.37% per year, were issued. On September 15, 2011, and pursuant to a Confirmation of Acceptance, dated January 21, 2011 (the “Confirmation”), in connection with the Master Agreement, $100.0 million in Series E Senior Notes were issued and are due September 15, 2018, with a fixed interest rate of 4.50% per year. The Series E Senior Notes were issued for the sole purpose of retiring the Series A Senior Notes. As of March 31, 2014, and December 31, 2013, there was an outstanding debt balance issued under the provisions of the Master Agreement of $150.0 million.
	On October 12, 2012, the Company entered into a Master Note Facility Agreement (the “New Master Agreement”) with another national insurance company (the “New Purchaser”). The New Purchaser also purchased Notes issued by the Company in 2004. The New Master Agreement provides for a $125.0 million private uncommitted “shelf” facility for the issuance of unsecured senior notes over a three-year period, with interest rates that may be fixed or floating and with such maturity dates, not to exceed ten years, as the parties may determine. The New Master Agreement includes various covenants, limitations and events of default similar to the Master Agreement. At March 31, 2014 and December 31, 2013, there were no borrowings against this facility.
	On January 9, 2012, the Company entered into: (1) an amended and restated revolving and term loan credit agreement (the “SunTrust Agreement”) with SunTrust Bank (“SunTrust”) that provides for (a) a $100.0 million term loan (the “SunTrust Term Loan”) and (b) a $50.0 million revolving line of credit (the “SunTrust Revolver”) and (2) a $50.0 million promissory note (the “JPM Note”) in favor of JPMorgan Chase Bank, N.A. (“JPMorgan”), pursuant to a letter agreement executed by JP Morgan (together with the JPM Note, the “JPM Agreement”) that provided for a $50.0 million uncommitted line of credit bridge facility (the “JPM Bridge Facility”). The SunTrust Term Loan, the SunTrust Revolver and the JPM Bridge Facility were each funded on January 9, 2012, and provided the financing for the Arrowhead acquisition. The SunTrust Agreement amended and restated the Prior Loan Agreement. The SunTrust Revolver and JPM Bridge Facility were paid off by the JPM Term Loan (defined below).
	The maturity date for the SunTrust Term Loan and the SunTrust Revolver is December 31, 2016, at which time all outstanding principal and unpaid interest will be due. Both the SunTrust Term Loan and the SunTrust Revolver may be increased by up to $50.0 million (bringing the total amount available to $150.0 million for the SunTrust Term Loan and $100.0 million for the SunTrust Revolver). The calculation of interest and fees for the SunTrust Agreement is generally based on the Company’s funded debt-to-EBITDA ratio. Interest is charged at a rate equal to 1.00% to 1.40% above LIBOR or 1.00% below the Base Rate, each as more fully described in the SunTrust Agreement. Fees include an up-front fee, an availability fee of 0.175% to 0.25%, and a letter of credit margin fee of 1.00% to 1.40%. The obligations under the SunTrust Term Loan and SunTrust Revolver are unsecured and the SunTrust Agreement includes various covenants, limitations and events of default that are customary for similar facilities for similar borrowers and that are substantially similar to those contained in the Prior Loan Agreement. As of March 31, 2014 and December 31, 2013, there was an outstanding balance of $100.0 million under the SunTrust Term Loan.
	The maturity date for the JPM Bridge Facility was February 3, 2012, at which time all outstanding principal and unpaid interest would have been due. On January 26, 2012, the Company entered into a term loan agreement (the “JPM Agreement”) with JPMorgan that provided for a $100.0 million term loan (the “JPM Term Loan”). The JPM Term Loan was fully funded on January 26, 2012, and provided the financing to fully repay (1) the JPM Bridge Facility and (2) the SunTrust Revolver. As a result of the January 26, 2012 financing and repayments, the JPM Bridge Facility was terminated and the SunTrust Revolver’s amount outstanding was reduced to zero. At March 31, 2014 and December 31, 2013, there were no borrowings against the SunTrust Revolver.
	The maturity date for the JPM Term Loan is December 31, 2016, at which time all outstanding principal and unpaid interest will be due. Interest is charged at a rate equal to the Alternative Base Rate or 1.00% above the Adjusted LIBOR Rate, each as more fully described in the JPM Agreement. Fees include an up-front fee. The obligations under the JPM Term Loan are unsecured and the JPM Agreement includes various covenants, limitations and events of default that are customary for similar facilities for similar borrowers. As of March 31, 2014 and December 31, 2013, there was an outstanding balance of $100.0 million under the JPM Term Loan.
	On July 1, 2013, in conjunction with the acquisition of Beecher Carlson, the Company entered into: (1) a revolving loan agreement (the “Wells Fargo Agreement”) with Wells Fargo Bank, N.A. that provides for a $50.0 million revolving line of credit (the “Wells Fargo Revolver”) and (2) a term loan agreement (the “Bank of America Agreement”) with Bank of America, N.A. (“Bank of America”) that provides for a $30.0 million term loan (the “Bank of America Term Loan”).
	The maturity date for the Wells Fargo Revolver is December 31, 2016, at which time all outstanding principal and unpaid interest will be due. The Wells Fargo Revolver may be increased by up to $50.0 million (bringing the total amount available to $100.0 million). The calculation of interest and fees for the Wells Fargo Agreement is generally based on the Company’s funded debt-to-EBITDA ratio. Interest is charged at a rate equal to 1.00% to 1.40% above LIBOR or 1.00% below the Base Rate, each as more fully described in the Wells Fargo Agreement. Fees include an up-front fee, an availability fee of 0.175% to 0.25%, and a letter of credit margin fee of 1.00% to 1.40%. The obligations under the Wells Fargo Revolver are unsecured and the Wells Fargo Agreement includes various covenants, limitations and events of default that are customary for similar facilities for similar borrowers. The Wells Fargo Revolver was drawn down in the amount of $30.0 million on July 1, 2013. There were no borrowings against the Wells Fargo Revolver as of March 31, 2014 and December 31, 2013.
	The maturity date for the Bank of America Term Loan is December 31, 2016, at which time all outstanding principal and unpaid interest will be due. The calculation of interest for the Bank of America Agreement is generally based on the Company’s fixed charge coverage ratio. Interest is charged at a rate equal to the Alternative Base Rate or 1.00% to 1.40% above the Adjusted LIBOR Rate, each as more fully described in the Bank of America Agreement. Fees include an up-front fee. The obligations under the Bank of America Term Loan are unsecured and the Bank of America Agreement includes various covenants, limitations and events of default that are customary for similar facilities for similar borrowers. The Bank of America Term Loan was funded in the amount of $30.0 million on July 1, 2013. As of March 31, 2014 and December 31, 2013 there was an outstanding balance of $30.0 million under the Bank of America Term Loan.
	The 30-day LIBOR and Adjusted LIBOR Rate as of March 31, 2014 were 0.15% and 0.19%, respectively.
	The Notes, the Master Agreement, the SunTrust Agreement and the JPM Agreement all require the Company to maintain certain financial ratios and comply with certain other covenants. The Company was in compliance with all such covenants as of March 31, 2014 and December 31, 2013.
	On April 17, 2014, as described in the Subsequent Events footnote, the Company entered into a credit agreement with JPMorgan Chase Bank, N.A. as administrative agent and certain other banks as co-syndication agents and co-documentation agents (the “Credit Agreement”). The Credit Agreement in the amount of $1,350.0 million provides for an unsecured revolving credit facility in the initial amount of $800.0 million and unsecured term loans in the initial amount of $550.0 million, either or both of which may, subject to lenders’ discretion, potentially be increased by up to $500.0 million (the “Facility”). The Facility terminates on April 16, 2019, but either or both of the revolving credit facility and the term loans may be extended for two additional one-year periods at the Company’s request and at the discretion of the respective lenders. Interest and facility fees in respect to the Facility are based on the better of the Company’s net debt leverage ratio or a non-credit enhanced senior unsecured long-term debt rating. Based on the Company’s net debt leverage ratio, the rates of interest for the first two quarters will be 1.375% above the adjusted LIBOR rate for outstanding amounts drawn under the revolving loans and term loans. There are fees included in the facility fee based on the revolving credit commitments of the lenders (whether used or unused) and letter of credit fees based on the amounts of outstanding secured or unsecured letters of credit. The Facility includes various covenants, limitations and events of default customary for similar facilities for similarly rated borrowers. As of the date of filing this Form 10-Q, there are no amounts outstanding under the Facility.
	See Note 11, Subsequent Events,  for further description of the new credit facility entered into by the Company in April 2014.

Supplemental_Disclosures_of_Ca

Supplemental Disclosures of Cash Flow Information and Non-Cash Financing and Investing Activities	3 Months Ended
	Mar. 31, 2014
Supplemental Cash Flow Elements [Abstract]	'
Supplemental Disclosures of Cash Flow Information and Non-Cash Financing and Investing Activities	'
	NOTE 8· Supplemental Disclosures of Cash Flow Information and Non-Cash Financing and Investing Activities
		For the three months
		ended March 31,
	(in thousands)	2014		2013
	Cash paid during the period for:
	Interest	$	5,230	$	4,827
	Income taxes	$	1,532	$	5,379
	Brown & Brown’s significant non-cash financing and investing activities are summarized as follows:
		For the three months
		ended March 31,
	(in thousands)	2014		2013
	Other payable issued for purchased customer accounts	$	—	$	172
	Estimated acquisition earn-out payables and related charges	$	280	$	(721	)
	Notes received on the sale of fixed assets and customer accounts	$	131	$	126

Legal_and_Regulatory_Proceedin

Legal and Regulatory Proceedings	3 Months Ended
	Mar. 31, 2014
Commitments And Contingencies Disclosure [Abstract]	'
Legal and Regulatory Proceedings	'
	NOTE 9· Legal and Regulatory Proceedings
	The Company is involved in numerous pending or threatened proceedings by or against Brown & Brown, Inc. or one or more of its subsidiaries that arise in the ordinary course of business. The damages that may be claimed against the Company in these various proceedings are in some cases substantial, including in many instances claims for punitive or extraordinary damages. Some of these claims and lawsuits have been resolved, others are in the process of being resolved and others are still in the investigation or discovery phase. The Company will continue to respond appropriately to these claims and lawsuits and to vigorously protect its interests.
	Although the ultimate outcome of such matters cannot be ascertained and liabilities in indeterminate amounts may be imposed on Brown & Brown, Inc. or its subsidiaries, on the basis of present information, availability of insurance and legal advice, it is the opinion of management that the disposition or ultimate determination of such claims will not have a material adverse effect on the Company’s consolidated financial position. However, as (i) one or more of the Company’s insurance companies could take the position that portions of these claims are not covered by the Company’s insurance, (ii) to the extent that payments are made to resolve claims and lawsuits, applicable insurance policy limits are eroded, and (iii) the claims and lawsuits relating to these matters are continuing to develop, it is possible that future results of operations or cash flows for any particular quarterly or annual period could be materially affected by unfavorable resolutions of these matters.

Segment_Information

Segment Information	3 Months Ended
	Mar. 31, 2014
Segment Reporting [Abstract]	'
Segment Information	'
	NOTE 10· Segment Information
	Brown & Brown’s business is divided into four reportable segments: the Retail Division, which provides a broad range of insurance products and services to commercial, public and quasi-public entities, and to professional and individual customers; the National Programs Division, which provides professional liability and related package products for certain professionals delivered through nationwide networks of independent agents, and markets targeted products and services designed for specific industries, trade groups, public and quasi-public entities, and market niches; the Wholesale Brokerage Division, which markets and sells excess and surplus commercial and personal lines insurance, and reinsurance, primarily through independent agents and brokers; and the Services Division, which provides insurance-related services, including third-party claims administration and comprehensive medical utilization management services in both the workers’ compensation and all-lines liability arenas, as well as Medicare set-aside services, Social Security disability and Medicare benefits advocacy services and catastrophe claims adjusting services.
	Brown & Brown conducts all of its operations within the United States of America, except for one wholesale brokerage operation based in London, England, and retail operations in Bermuda and the Cayman Islands. These operations earned $2.4 million and $3.0 million of total revenues for the three months ended March 31, 2014 and 2013, respectively. Additionally, these operations earned $12.2 million of total revenues for the year ended December 31, 2013. Long-lived assets held outside of the United States during the three months ended March 31, 2014 and 2013 were not material.
	The accounting policies of the reportable segments are the same as those described in Note 1 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2013. Brown & Brown evaluates the performance of its segments based upon revenues and income before income taxes. Inter-segment revenues are eliminated.
	Summarized financial information concerning Brown & Brown’s reportable segments is shown in the following table. The “Other” column includes any income and expenses not allocated to reportable segments and corporate-related items, including the inter-company interest expense charge to the reporting segment.
		For the three months ended March 31, 2014
	(in thousands)	Retail		National		Wholesale		Services		Other			Total
				Programs		Brokerage
	Total revenues	$	202,691	$	74,170	$	55,020	$	31,642	$	71		$	363,594
	Investment income	$	16	$	5	$	4	$	2	$	76		$	103
	Amortization	$	10,151	$	3,775	$	2,883	$	1,057	$	10		$	17,876
	Depreciation	$	1,584	$	1,467	$	650	$	463	$	476		$	4,640
	Interest expense	$	10,713	$	5,441	$	419	$	1,970	$	(14,471	)	$	4,072
	Income before income taxes	$	41,245	$	16,123	$	12,738	$	2,815	$	13,916		$	86,837
	Total assets	$	3,032,674	$	1,338,120	$	940,604	$	276,219	$	(1,913,328	)	$	3,674,289
	Capital expenditures	$	2,112	$	1,698	$	482	$	291	$	144		$	4,727
		For the three months ended March 31, 2013
	(in thousands)	Retail		National		Wholesale		Services		Other			Total
				Programs		Brokerage
	Total revenues	$	174,568	$	68,940	$	48,697	$	42,647	$	160		$	335,012
	Investment income	$	23	$	5	$	5	$	1	$	152		$	186
	Amortization	$	8,811	$	3,519	$	2,897	$	924	$	10		$	16,161
	Depreciation	$	1,371	$	1,248	$	707	$	397	$	444		$	4,167
	Interest expense	$	6,200	$	5,694	$	755	$	1,921	$	(10,586	)	$	3,984
	Income before income taxes	$	46,211	$	14,012	$	10,362	$	13,953	$	14,953		$	99,491
	Total assets	$	2,483,391	$	1,194,383	$	882,273	$	248,882	$	(1,578,569	)	$	3,230,360
	Capital expenditures	$	1,335	$	892	$	536	$	119	$	65		$	2,947

Subsequent_Event

Subsequent Event	3 Months Ended
	Mar. 31, 2014
Subsequent Events [Abstract]	'
Subsequent Event	'
	NOTE 11· Subsequent Events
	On January 15, 2014, Brown & Brown entered into a merger agreement (the “Agreement”) to acquire Wright. Under the Agreement, the merger was subject to certain closing conditions including the receipt of required regulatory approvals for the transaction (including the approval of antitrust authorities necessary to complete the acquisition). Under the merger agreement, Wright’s equity interests will be converted into the rights to receive cash equal, collectively, to $602.5 million.
	In addition, Wright’s equity holders may receive additional consideration of up to $37.5 million in cash in the event of the closing of certain acquisition transactions by the Company and its affiliates prior to July 15, 2015.
	On April 17, 2014, the Company entered into a credit agreement (the “Credit Agreement”). The Credit Agreement provides for an unsecured revolving credit facility in the initial amount of $800.0 million and unsecured term loans in the initial amount of $550.0 million, either or both of which may, subject to lenders’ discretion, potentially be increased up to an aggregate amount of $1.85 billion (the “Facility”). The Facility also includes the ability to issue letters of credit and to utilize swing line loans. The revolving facility is repayable in five years and the term loans are repayable over the five-year term from the date of first funding, which is expected to occur in the second quarter of 2014 in connection with the closing of the Company’s acquisition of Wright. The Facility terminates on April 16, 2019, but either or both of the revolving credit facility and the term loans may be extended for two additional one-year periods at the request of the Company and at the discretion of the respective lenders.
	Proceeds from the Facility are expected to be utilized to repay the long-term debt of $230 million outstanding in connection with the JPM Term Loan, the Bank of America Term Loan and SunTrust Term Loan (See Note 7, Long-Term Debt, for a description of these arrangements). Each of these banks is participating in the Facility. Also, the Company currently expects to repay the $100.0 million owed pursuant to the Series B Notes as well as amounts outstanding under other existing credit facilities with the proceeds of the new credit facility.
	Interest and facility fees in respect to the Facility are based on the better of the Company’s net debt leverage ratio or a non-credit enhanced senior unsecured long-term debt rating. Based on the Company’s net debt leverage ratio, the rates of interest for the first two quarters will be 1.375% above the adjusted LIBOR rate for the revolving loans and term loans. There are fees included in the facility fee based on the revolving credit commitments of the lenders (whether used or unused) and letter of credit fees based on the amounts of outstanding secured or unsecured letters of credit.
	The Facility includes various covenants, limitations and events of default customary for similar facilities for similarly rated borrowers. As of the date of filing this Form 10-Q, there are no amounts outstanding under the Facility.

Nature_of_Operations_Policies

Nature of Operations (Policies)	3 Months Ended
	Mar. 31, 2014
Accounting Policies [Abstract]	'
Nature of Operations	'
	Brown & Brown, Inc., a Florida corporation, and its subsidiaries (collectively, “Brown & Brown” or the “Company”) is a diversified insurance agency, wholesale brokerage, insurance programs and services organization that markets and sells to its customers insurance products and services, primarily in the property and casualty area. Brown & Brown’s business is divided into four reportable segments: the Retail Division, which provides a broad range of insurance products and services to commercial, public entity, professional and individual customers; the Wholesale Brokerage Division, which markets and sells excess and surplus commercial insurance and reinsurance, primarily through independent agents and brokers; the National Programs Division, which provides professional liability and related package products for certain professionals delivered through nationwide networks of independent agents, and markets targeted products and services designated for specific industries, trade groups, governmental entities and market niches; and the Services Division, which provides insurance-related services, including third-party claims administration and comprehensive medical utilization management services in both the workers’ compensation and all-lines liability arenas, as well as Medicare set-aside services, Social Security disability and Medicare benefits advocacy services, and catastrophe claims adjusting services.

Net_Income_Per_Share_Tables

Net Income Per Share (Tables)	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
Reconciliation between Basic and Diluted Weighted Average Shares Outstanding:	'
	The following is a reconciliation between basic and diluted weighted average shares outstanding:
		For the three months
		ended March 31,
	(in thousands, except per share data)	2014			2013
	Net income	$	52,415		$	60,131
	Net income attributable to unvested awarded performance stock		(1,376	)		(1,308	)
	Net income attributable to common shares	$	51,039		$	58,823
	Weighted average number of common shares outstanding – basic		145,429			143,926
	Less unvested awarded performance stock included in weighted average number of common shares outstanding – basic		(3,819	)		(3,130	)
	Weighted average number of common shares outstanding for basic earnings per common share		141,610			140,796
	Dilutive effect of stock options		1,699			2,151
	Weighted average number of shares outstanding – diluted		143,309			142,947
	Net income per share:
	Basic	$	0.36		$	0.42
	Diluted	$	0.36		$	0.41

Business_Combinations_Tables

Business Combinations (Tables)	3 Months Ended
	Mar. 31, 2014
2014 Acquisitions [Member]	'
Acquisitions Accounted for as Business Combinations	'
	The following table summarizes the aggregate purchase price allocations made as of the date of acquisition for the current-year acquisition and adjustments made during the measurement period for prior-year acquisitions:
	(in thousands)
	Name	Business		Date of		Cash				Recorded				Net Assets
		Segment		Acquisition		Paid				Earn-out				Acquired
										Payable
	Acquisition	Retail		Various		$	1,013			$	280			$	1,293
Estimated Fair Values of Aggregate Assets and Liabilities Acquired	'
	The following table summarizes the adjustments made to the estimated fair values along with the aggregate assets and liabilities acquired as of the date of each acquisition:
	(in thousands)
	Other current assets	$	384
	Fixed assets		4
	Goodwill		318
	Purchased customer accounts		607
	Non-compete agreements		11
	Total assets acquired		1,324
	Other current liabilities		(31	)
	Net assets acquired	$	1,293
Results of Operations	'
	These unaudited pro forma results are not necessarily indicative of the actual results of operations that would have occurred had the acquisition actually been made at the beginning of the respective periods.
	(UNAUDITED)	For the three months
		ended March 31,
	(in thousands, except per share data)	2014				2013
	Total revenues	$	363,739			$	335,253
	Income before income taxes	$	86,883			$	99,566
	Net income	$	52,443			$	60,176
	Net income per share:
	Basic	$	0.36			$	0.42
	Diluted	$	0.36			$	0.41
	Weighted average number of shares outstanding:
	Basic		141,610				140,796
	Diluted		143,309				142,947
2013 Acquisitions [Member]	'
Acquisitions Accounted for as Business Combinations	'
	The following table summarizes the adjustments made to the aggregate purchase price allocations as of the date of each acquisition:
	(in thousands)
	Name	Business		2012				Cash				Other				Recorded				Net Assets
		Segment		Date of				Paid				Payable				Earn-out				Acquired
				Acquisition												Payable
	Arrowhead General Insurance Agency Superholding Corporation	National			January 9			$	—			$	(454	)		$	—			$	(454	)
		Programs;
		Services
	Insurcorp & GGM Investments LLC	Retail			1-May				—				—				(834	)			(834	)
	Richard W. Endlar Insurance Agency, Inc.	Retail			1-May				—				—				220				220
	Texas Security General Insurance Agency, Inc.	Wholesale/			1-Sep				—				—				(107	)			(107	)
		Brokerage
	Other	Various			Various				61				—				—				61
	Total							$	61			$	(454	)		$	(721	)		$	(1,114	)
Estimated Fair Values of Aggregate Assets and Liabilities Acquired	'
	The following table summarizes the adjustments made to the estimated fair values of the aggregate assets and liabilities acquired as of the date of each acquisition:
	(in thousands)	Arrowhead				Insurcorp				Endlar				Texas				Other				Total
														Security
	Other current assets	$	—			$	—			$	—			$	25			$	1,419			$	1,444
	Goodwill		(454	)			(566	)			216				(843	)			(1,214	)			(2,861	)
	Purchased customer accounts		—				(268	)			4				708				(98	)			346
	Total assets acquired		(454	)			(834	)			220				(110	)			107				(1,071	)
	Other current liabilities		—				—				—				3				(46	)			(43	)
	Net assets acquired	$	(454	)		$	(834	)		$	220			$	(107	)		$	61			$	(1,114	)
Additions, Payments, and Net Changes, as well as Interest Expense Accretion on Estimated Acquisition Earn-Out Payables	'
	The resulting additions, payments, and net changes, as well as the interest expense accretion on the estimated acquisition earn-out payables, for the three months ended March 31, 2014 and 2013, were as follows:
		For the three months
		ended March 31,
	(in thousands)	2014				2013
	Balance as of the beginning of the period	$	43,058			$	52,987
	Additions to estimated acquisition earn-out payables		280				(721	)
	Payments for estimated acquisition earn-out payables		(615	)			(4,319	)
	Subtotal		42,723				47,947
	Net change in earnings from estimated acquisition earn-out payables:
	Change in fair value on estimated acquisition earn-out payables		5,603				997
	Interest expense accretion		480				525
	Net change in earnings from estimated acquisition earn-out payables		6,083				1,522
	Balance as of March 31	$	48,806			$	49,469

Goodwill_Tables

Goodwill (Tables)	3 Months Ended
	Mar. 31, 2014
Goodwill And Intangible Assets Disclosure [Abstract]	'
Changes in Carrying Value of Goodwill by Reportable Segment	'
	The changes in the carrying value of goodwill by operating segment for the three months ended March 31, 2014 are as follows:
	(in thousands)	Retail		National		Wholesale		Services		Total
				Programs		Brokerage
	Balance as of January 1, 2014	$	1,131,257	$	467,144	$	287,242	$	120,530	$	2,006,173
	Goodwill of acquired businesses		318		—		—		—		318
	Balance as of March 31, 2014	$	1,131,575	$	467,144	$	287,242	$	120,530	$	2,006,491

Amortizable_Intangible_Assets_

Amortizable Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2014
Goodwill And Intangible Assets Disclosure [Abstract]	'
Amortizable Intangible Assets	'
	Amortizable intangible assets at March 31, 2014 and December 31, 2013, consisted of the following:
		March 31, 2014									December 31, 2013
	(in thousands)	Gross		Accumulated			Net		Weighted		Gross		Accumulated			Net		Weighted
		Carrying		Amortization			Carrying		Average		Carrying		Amortization			Carrying		Average
		Value					Value		Life		Value					Value		Life
									(years)(1)									(years)(1)
	Purchased customer accounts	$	1,121,150	$	(522,671	)	$	598,479		14.9	$	1,120,719	$	(505,137	)	$	615,582		14.9
	Non-compete agreements		28,126		(25,031	)		3,095		7		28,115		(24,809	)		3,306		7
	Total	$	1,149,276	$	(547,702	)	$	601,574			$	1,148,834	$	(529,946	)	$	618,888

LongTerm_Debt_Tables

Long-Term Debt (Tables)	3 Months Ended
	Mar. 31, 2014
Debt Disclosure [Abstract]	'
Long-Term Debt Instrument	'
	Long-term debt at March 31, 2014 and December 31, 2013, consisted of the following:
	(in thousands)	2014		2013
	Unsecured senior notes	$	480,000	$	480,000
	Revolving credit facilities		—		—
	Total debt		480,000		480,000
	Less current portion		—		(100,000	)
	Long-term debt	$	480,000	$	380,000

Supplemental_Disclosures_of_Ca1

Supplemental Disclosures of Cash Flow Information and Non-Cash Financing and Investing Activities (Tables)	3 Months Ended
	Mar. 31, 2014
Supplemental Cash Flow Elements [Abstract]	'
Summary of Supplemental Disclosures of Cash Flow Information and Non-Cash Financing and Investing Activities	'
	For the three months
	ended March 31,
	(in thousands)	2014		2013
	Cash paid during the period for:
	Interest	$	5,230	$	4,827
	Income taxes	$	1,532	$	5,379
	Brown & Brown’s significant non-cash financing and investing activities are summarized as follows:
		For the three months
		ended March 31,
	(in thousands)	2014		2013
	Other payable issued for purchased customer accounts	$	—	$	172
	Estimated acquisition earn-out payables and related charges	$	280	$	(721	)
	Notes received on the sale of fixed assets and customer accounts	$	131	$	126

Segment_Information_Tables

Segment Information (Tables)	3 Months Ended
	Mar. 31, 2014
Segment Reporting [Abstract]	'
Summarized Financial Information Reportable Segments	'
	Summarized financial information concerning Brown & Brown’s reportable segments is shown in the following table. The “Other” column includes any income and expenses not allocated to reportable segments and corporate-related items, including the inter-company interest expense charge to the reporting segment.
		For the three months ended March 31, 2014
	(in thousands)	Retail		National		Wholesale		Services		Other			Total
				Programs		Brokerage
	Total revenues	$	202,691	$	74,170	$	55,020	$	31,642	$	71		$	363,594
	Investment income	$	16	$	5	$	4	$	2	$	76		$	103
	Amortization	$	10,151	$	3,775	$	2,883	$	1,057	$	10		$	17,876
	Depreciation	$	1,584	$	1,467	$	650	$	463	$	476		$	4,640
	Interest expense	$	10,713	$	5,441	$	419	$	1,970	$	(14,471	)	$	4,072
	Income before income taxes	$	41,245	$	16,123	$	12,738	$	2,815	$	13,916		$	86,837
	Total assets	$	3,032,674	$	1,338,120	$	940,604	$	276,219	$	(1,913,328	)	$	3,674,289
	Capital expenditures	$	2,112	$	1,698	$	482	$	291	$	144		$	4,727
		For the three months ended March 31, 2013
	(in thousands)	Retail		National		Wholesale		Services		Other			Total
				Programs		Brokerage
	Total revenues	$	174,568	$	68,940	$	48,697	$	42,647	$	160		$	335,012
	Investment income	$	23	$	5	$	5	$	1	$	152		$	186
	Amortization	$	8,811	$	3,519	$	2,897	$	924	$	10		$	16,161
	Depreciation	$	1,371	$	1,248	$	707	$	397	$	444		$	4,167
	Interest expense	$	6,200	$	5,694	$	755	$	1,921	$	(10,586	)	$	3,984
	Income before income taxes	$	46,211	$	14,012	$	10,362	$	13,953	$	14,953		$	99,491
	Total assets	$	2,483,391	$	1,194,383	$	882,273	$	248,882	$	(1,578,569	)	$	3,230,360
	Capital expenditures	$	1,335	$	892	$	536	$	119	$	65		$	2,947

Nature_of_Operations_Additiona

Nature of Operations - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2014
	Segment
Organization Consolidation And Presentation Of Financial Statements [Abstract]	'
Number of reportable segments	4

Net_Income_Per_Share_Reconcili

Net Income Per Share - Reconciliation between Basic and Diluted Weighted Average Shares Outstanding (Detail) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Earnings Per Share [Abstract]	'	'
Net income	$52,415	$60,131
Net income attributable to unvested awarded performance stock	-1,376	-1,308
Net income attributable to common shares	$51,039	$58,823
Weighted average number of common shares outstanding - basic	145,429	143,926
Less unvested awarded performance stock included in weighted average number of common shares outstanding - basic	-3,819	-3,130
Weighted average number of common shares outstanding for basic earnings per common share	141,610	140,796
Dilutive effect of stock options	1,699	2,151
Weighted average number of shares outstanding - diluted	143,309	142,947
Basic	$0.36	$0.42
Diluted	$0.36	$0.41

Business_Combinations_Addition

Business Combinations - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012
Business Acquisition [Line Items]	'	'	'	'
Aggregate purchase price of acquisitions	$1,324,000	$1,071,000	'	'
Cash payment for acquisition	1,013,000	61,000	'	'
Assumption of liabilities	31,000	43,000	'	'
Recorded earn-out payables	280,000	'	'	'
Average annual operating profit earned period, minimum (years)	'1 year	'	'	'
Average annual operating profit earned period, maximum (years)	'3 years	'	'	'
Aggregate purchase price of acquisitions	21,000	'	'	'
Total goodwill	318,000	'	'	'
Goodwill currently deductible for income tax purposes	38,000	'	'	'
Goodwill related to the recorded earn-out payables	280,000	'	'	'
Total revenues related to acquisitions	6,000	'	'	'
Income before income taxes related to acquisitions	1,000	'	'	'
Other payables for acquisition	'	454,000	'	'
Recorded earn-out payable	280,000	-721,000	'	'
Maximum future contingency payments related to acquisitions	125,006,000	'	'	'
Percentage recognition by acquirer of fair value of acquired assets	100.00%	'	'	'
Future earnings of acquired entities, term basis of potential earn-out obligations, minimum (years)	'1 year	'	'	'
Future earnings of acquired entities, term basis of potential earn-out obligations, maximum (years)	'3 years	'	'	'
Estimated acquisition earn-out payables	48,806,000	49,469,000	43,058,000	52,987,000
Accounts Payable [Member]	'	'	'	'
Business Acquisition [Line Items]	'	'	'	'
Estimated acquisition earn-out payables	18,171,000	'	'	'
Purchased customer accounts [Member]	'	'	'	'
Business Acquisition [Line Items]	'	'	'	'
Weighted average life (years)	'15 years	'	'	'
Non-compete agreements [Member]	'	'	'	'
Business Acquisition [Line Items]	'	'	'	'
Weighted average life (years)	'5 years	'	'	'
Other Non-Current Liability [Member]	'	'	'	'
Business Acquisition [Line Items]	'	'	'	'
Estimated acquisition earn-out payables	$30,635,000	'	'	'
Asset Acquisitions [Member]	'	'	'	'
Business Acquisition [Line Items]	'	'	'	'
Number of acquisitions	1	'	'	'

Business_Combinations_Acquisit

Business Combinations - Acquisitions Accounted for Business Combinations (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Business Combination, Separately Recognized Transactions [Line Items]	'	'
Cash Paid	$1,013,000	$61,000
Other Payable	'	-454,000
Net Assets Acquired	1,293,000	-1,114,000
Arrowhead General Insurance Agency Superholding Corporation [Member]	'	'
Business Combination, Separately Recognized Transactions [Line Items]	'	'
Net Assets Acquired	'	-454,000
Insurcorp & GGM Investments LLC [Member]	'	'
Business Combination, Separately Recognized Transactions [Line Items]	'	'
Net Assets Acquired	'	-834,000
Richard W. Endlar Insurance Agency, Inc. [Member]	'	'
Business Combination, Separately Recognized Transactions [Line Items]	'	'
Net Assets Acquired	'	220,000
Texas Security General Insurance Agency, Inc. [Member]	'	'
Business Combination, Separately Recognized Transactions [Line Items]	'	'
Net Assets Acquired	'	-107,000
Other Acquisitions [Member]	'	'
Business Combination, Separately Recognized Transactions [Line Items]	'	'
Net Assets Acquired	'	61,000
2012 Acquisitions [Member]	'	'
Business Combination, Separately Recognized Transactions [Line Items]	'	'
Cash Paid	'	61,000
Other Payable	'	-454,000
Recorded Earn-out Payable	'	-721,000
Net Assets Acquired	'	-1,114,000
2012 Acquisitions [Member] | Arrowhead General Insurance Agency Superholding Corporation [Member] | National Programs & Services [Member]	'	'
Business Combination, Separately Recognized Transactions [Line Items]	'	'
Date of Acquisition	'	9-Jan-12
Other Payable	'	-454,000
Net Assets Acquired	'	-454,000
2012 Acquisitions [Member] | Insurcorp & GGM Investments LLC [Member] | Retail [Member]	'	'
Business Combination, Separately Recognized Transactions [Line Items]	'	'
Date of Acquisition	'	1-May-12
Recorded Earn-out Payable	'	-834,000
Net Assets Acquired	'	-834,000
2012 Acquisitions [Member] | Richard W. Endlar Insurance Agency, Inc. [Member] | Retail [Member]	'	'
Business Combination, Separately Recognized Transactions [Line Items]	'	'
Date of Acquisition	'	1-May-12
Recorded Earn-out Payable	'	220,000
Net Assets Acquired	'	220,000
2012 Acquisitions [Member] | Texas Security General Insurance Agency, Inc. [Member] | Wholesale Brokerage [Member]	'	'
Business Combination, Separately Recognized Transactions [Line Items]	'	'
Date of Acquisition	'	1-Sep-12
Recorded Earn-out Payable	'	-107,000
Net Assets Acquired	'	-107,000
2012 Acquisitions [Member] | Other Acquisitions [Member] | Various [Member]	'	'
Business Combination, Separately Recognized Transactions [Line Items]	'	'
Cash Paid	'	61,000
Net Assets Acquired	'	61,000
2014 Acquisitions [Member] | Retail [Member]	'	'
Business Combination, Separately Recognized Transactions [Line Items]	'	'
Cash Paid	1,013,000	'
Recorded Earn-out Payable	280,000	'
Net Assets Acquired	$1,293,000	'

Business_Combinations_Estimate

Business Combinations - Estimated Fair Values of Aggregate Assets and Liabilities Acquired (Detail) (USD $)	Mar. 31, 2014	Mar. 31, 2013
Other current assets	$384,000	$1,444,000
Fixed assets	4,000	'
Goodwill	318,000	-2,861,000
Purchased customer accounts	607,000	346,000
Non-compete agreements	11,000	'
Total assets acquired	1,324,000	-1,071,000
Other current liabilities	-31,000	-43,000
Net assets acquired	1,293,000	-1,114,000
Arrowhead General Insurance Agency Superholding Corporation [Member]	'	'
Goodwill	'	-454,000
Total assets acquired	'	-454,000
Net assets acquired	'	-454,000
Insurcorp & GGM Investments LLC [Member]	'	'
Goodwill	'	-566,000
Purchased customer accounts	'	-268,000
Total assets acquired	'	-834,000
Net assets acquired	'	-834,000
Richard W. Endlar Insurance Agency, Inc. [Member]	'	'
Goodwill	'	216,000
Purchased customer accounts	'	4,000
Total assets acquired	'	220,000
Net assets acquired	'	220,000
Texas Security General Insurance Agency, Inc. [Member]	'	'
Other current assets	'	25,000
Goodwill	'	-843,000
Purchased customer accounts	'	708,000
Total assets acquired	'	-110,000
Other current liabilities	'	3,000
Net assets acquired	'	-107,000
Other Acquisitions [Member]	'	'
Other current assets	'	1,419,000
Goodwill	'	-1,214,000
Purchased customer accounts	'	-98,000
Total assets acquired	'	107,000
Other current liabilities	'	-46,000
Net assets acquired	'	$61,000

Business_Combinations_Results_

Business Combinations - Results of Operations (Detail) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Weighted average number of shares outstanding:	'	'
Basic	141,610	140,796
Diluted	143,309	142,947
2014 Acquisitions [Member]	'	'
Business Acquisition, Pro Forma Information [Line Items]	'	'
Total revenues	363,739	335,253
Income before income taxes	86,883	99,566
Net income	52,443	60,176
Net income per share:	'	'
Basic	0.36	0.42
Diluted	0.36	0.41
Weighted average number of shares outstanding:	'	'
Basic	141,610	140,796
Diluted	143,309	142,947

Business_Combinations_Addition1

Business Combinations - Additions, Payments, and Net Changes, as well as Interest Expense Accretion on Estimated Acquisition Earn-Out Payables (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Business Combinations [Abstract]	'	'
Beginning balance	$43,058,000	$52,987,000
Additions to estimated acquisition earn-out payables	280,000	-721,000
Payments for estimated acquisition earn-out payables	-615,000	-4,319,000
Subtotal	42,723,000	47,947,000
Change in fair value on estimated acquisition earn-out payables	5,603,000	997,000
Interest expense accretion	480,000	525,000
Net change in earnings from estimated acquisition earn-out payables	6,083,000	1,522,000
Ending balance	$48,806,000	$49,469,000

Goodwill_Changes_in_Carrying_V

Goodwill - Changes in Carrying Value of Goodwill by Reportable Segment (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Dec. 31, 2013
		Retail [Member]	National Programs [Member]	National Programs [Member]	Wholesale Brokerage [Member]	Wholesale Brokerage [Member]	Services [Member]	Services [Member]
Goodwill [Line Items]	'	'	'	'	'	'	'	'
Beginning balance	$2,006,173	$1,131,257	$467,144	$467,144	$287,242	$287,242	$120,530	$120,530
Goodwill of acquired businesses	318	318	'	'	'	'	'	'
Ending balance	$2,006,491	$1,131,575	$467,144	$467,144	$287,242	$287,242	$120,530	$120,530

Amortizable_Intangible_Assets_1

Amortizable Intangible Assets - Amortizable Intangible Assets (Detail) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Value	$1,149,276	$1,148,834
Accumulated Amortization	-547,702	-529,946
Net Carrying Value	601,574	618,888
Purchased customer accounts [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Value	1,121,150	1,120,719
Accumulated Amortization	-522,671	-505,137
Net Carrying Value	598,479	615,582
Weighted Average Life (years)	'14 years 10 months 24 days	'14 years 10 months 24 days
Non-compete agreements [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Value	28,126	28,115
Accumulated Amortization	-25,031	-24,809
Net Carrying Value	$3,095	$3,306
Weighted Average Life (years)	'7 years	'7 years

Amortizable_Intangible_Assets_2

Amortizable Intangible Assets - Additional Information (Detail) (USD $)	Mar. 31, 2014
Goodwill And Intangible Assets Disclosure [Abstract]	'
Amortization expense estimated, year one (2014)	$71,330,000
Amortization expense estimated, year two (2015)	70,047,000
Amortization expense estimated, year three (2016)	65,516,000
Amortization expense estimated, year four (2017)	62,807,000
Amortization expense estimated, year five (2018)	$57,482,000

LongTerm_Debt_LongTerm_Debt_In

Long-Term Debt - Long-Term Debt Instrument (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Debt Disclosure [Abstract]	'	'
Unsecured senior notes	$480,000	$480,000
Revolving credit facilities	'	'
Total debt	480,000	480,000
Less current portion	'	-100,000
Long-term debt	$480,000	$380,000

LongTerm_Debt_Additional_Infor

Long-Term Debt - Additional Information (Detail) (USD $)

3 Months Ended

3 Months Ended

0 Months Ended

0 Months Ended

3 Months Ended

3 Months Ended

3 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

3 Months Ended

0 Months Ended

3 Months Ended

3 Months Ended

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Jan. 09, 2012

Mar. 31, 2014

Dec. 31, 2013

Jan. 09, 2012

Jan. 09, 2012

Jan. 09, 2012

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Jun. 30, 2013

Mar. 31, 2014

Dec. 31, 2013

Jun. 30, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Oct. 12, 2012

Mar. 31, 2014

Dec. 31, 2013

Apr. 17, 2014

Apr. 17, 2014

Apr. 17, 2014

Jun. 30, 2014

Mar. 31, 2014

Mar. 31, 2014

JPM Term Loan [Member]

JPM Term Loan [Member]

Sun Trust Term Loan [Member]

Sun Trust Term Loan [Member]

Sun Trust Term Loan [Member]

JPM Bridge Facility [Member]

JPMorgan Chase Bank, N.A. [Member]

Sun Trust Revolver [Member]

Sun Trust Revolver [Member]

Sun Trust Revolver [Member]

Wells Fargo Revolver [Member]

Wells Fargo Revolver [Member]

Wells Fargo Revolver [Member]

Bank Of America Loan Term Loan [Member]

Bank Of America Loan Term Loan [Member]

Bank Of America Loan Term Loan [Member]

Private Placement [Member]

Private Placement [Member]

Private Placement [Member]

Private Placement [Member]

Private Placement [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Master Agreement [Member]

Master Agreement [Member]

Master Agreement [Member]

Master Agreement [Member]

Master Agreement [Member]

New Master Agreement [Member]

New Master Agreement [Member]

New Master Agreement [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Scenario, Forecast [Member]

Minimum [Member]

Maximum [Member]

Beecher Acquisition [Member]

Beecher Acquisition [Member]

Series B [Member]

Series B [Member]

Series A [Member]

Series A [Member]

Senior Notes[Member]

Sun Trust Revolver [Member]

Wells Fargo Revolver [Member]

Bank Of America Loan Term Loan [Member]

Series C [Member]

Series D [Member]

Series E [Member]

Credit Agreement [Member]

Facility [Member]

LIBOR [Member]

LIBOR [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unsecured senior notes outstanding

$480,000,000

$480,000,000

$100,000,000

$100,000,000

'

$100,000,000

$100,000,000

'

'

'

'

'

'

'

'

'

'

'

$100,000,000

$100,000,000

$100,000,000

'

$200,000,000

'

'

'

'

$150,000,000

$150,000,000

$25,000,000

$25,000,000

$100,000,000

'

$0

$0

'

'

'

'

'

'

Debt instrument, issuance date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

15-Jul-04

'

15-Sep-04

'

'

'

'

'

'

'

'

22-Dec-06

1-Feb-08

15-Sep-11

'

'

'

'

'

'

'

'

'

Debt instrument interest rate stated percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

6.08%

'

5.57%

'

'

'

'

'

'

'

'

5.66%

5.37%

4.50%

'

'

'

'

'

'

'

'

'

Debt instrument, maturity date

'

'

'

'

'

'

'

'

'

'

'

'

31-Dec-16

'

'

31-Dec-16

'

'

15-Jul-14

'

15-Sep-11

'

'

'

31-Dec-16

'

'

'

'

22-Dec-16

15-Jan-15

15-Sep-18

'

'

'

'

'

'

'

'

'

Notes redeemed

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100,000,000

100,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maximum shelf facility capacity

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

200,000,000

'

'

'

'

125,000,000

'

'

'

'

'

'

'

'

Length of the issuance period of long-term debt (in years)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'3 years

'

'

'

'

'3 years

'

'

'

'

'

'

'

'

Long-term debt maturity, period length, maximum (in years)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'Maturity dates, not to exceed ten years

'

'

'

'

'

'Maturity dates, not to exceed ten years

'

'

'

'

'

'

'

Revolving and term loan

'

'

100,000,000

'

100,000,000

'

'

50,000,000

50,000,000

50,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Increase in revolving credit facility

'

'

'

'

'

'

'

'

'

'

50,000,000

'

50,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Potential increased in line of credit facility

'

'

'

'

'

150,000,000

'

'

'

'

100,000,000

'

100,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,850,000,000

'

500,000,000

'

'

'

Letter of credit usage fee, minimum

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.00%

'

1.00%

1.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Letter of credit usage fee, maximum

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.40%

'

1.40%

1.40%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

LIBOR below base rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.00%

'

1.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Availability fees, minimum

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.18%

'

0.18%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Availability fees, maximum

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.25%

'

0.25%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest rate, minimum

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.00%

'

1.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest rate, maximum

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.40%

'

1.40%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Borrowings outstanding

'

'

'

'

'

'

'

'

'

'

0

0

0

0

'

30,000,000

30,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Adjusted LIBOR Rate

'

'

1.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Revolving line of credit

'

'

'

'

'

'

'

'

'

'

'

'

'

'

50,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Revolving and term loan

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

30,000,000

'

'

'

'

'

'

'

'

30,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Revolving credit facility remaining amount

'

'

'

'

'

'

'

'

'

'

'

'

30,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

30-day LIBOR Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.15%

0.15%

30-day Adjusted LIBOR Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.19%

0.19%

Unsecured revolving credit facility

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

800,000,000

1,350,000,000

'

'

'

'

Unsecured term loans

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$550,000,000

'

'

'

'

'

Line of credit facility termination period

16-Apr-19

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of credit facility interest rate above adjusted libor rate

1.38%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.38%

'

'

Supplemental_Disclosures_of_Ca2

Supplemental Disclosures of Cash Flow Information and Non-Cash Financing and Investing Activities -Significant Non-Cash Investing and Financing Activities (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Supplemental Cash Flow Elements [Abstract]	'	'
Interest	$5,230,000	$4,827,000
Income taxes	1,532,000	5,379,000
Other payable issued for purchased customer accounts	'	172,000
Estimated acquisition earn-out payables and related charges	280,000	-721,000
Notes received on the sale of fixed assets and customer accounts	$131,000	$126,000

Segment_Information_Additional

Segment Information - Additional Information (Detail) (USD $)	3 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]	'	'	'
Number of reportable segments	4	'	'
Total revenues	$363,594	$335,012	'
London, Bermuda and Cayman Islands [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total revenues	$2,400	$3,000	$12,200

Segment_Information_Summarized

Segment Information - Summarized Financial Information Reportable Segments (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]	'	'	'
Total revenues	$363,594	$335,012	'
Investment income	103	186	'
Amortization	17,876	16,161	'
Depreciation	4,640	4,167	'
Interest expense	4,072	3,984	'
Income before income taxes	86,837	99,491	'
Total assets	3,674,289	3,230,360	3,649,508
Capital expenditures	4,727	2,947	'
Operating Segments [Member] | Retail [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total revenues	202,691	174,568	'
Investment income	16	23	'
Amortization	10,151	8,811	'
Depreciation	1,584	1,371	'
Interest expense	10,713	6,200	'
Income before income taxes	41,245	46,211	'
Total assets	3,032,674	2,483,391	'
Capital expenditures	2,112	1,335	'
Operating Segments [Member] | National Programs [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total revenues	74,170	68,940	'
Investment income	5	5	'
Amortization	3,775	3,519	'
Depreciation	1,467	1,248	'
Interest expense	5,441	5,694	'
Income before income taxes	16,123	14,012	'
Total assets	1,338,120	1,194,383	'
Capital expenditures	1,698	892	'
Operating Segments [Member] | Wholesale Brokerage [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total revenues	55,020	48,697	'
Investment income	4	5	'
Amortization	2,883	2,897	'
Depreciation	650	707	'
Interest expense	419	755	'
Income before income taxes	12,738	10,362	'
Total assets	940,604	882,273	'
Capital expenditures	482	536	'
Operating Segments [Member] | Services [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total revenues	31,642	42,647	'
Investment income	2	1	'
Amortization	1,057	924	'
Depreciation	463	397	'
Interest expense	1,970	1,921	'
Income before income taxes	2,815	13,953	'
Total assets	276,219	248,882	'
Capital expenditures	291	119	'
Other [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total revenues	71	160	'
Investment income	76	152	'
Amortization	10	10	'
Depreciation	476	444	'
Interest expense	-14,471	-10,586	'
Income before income taxes	13,916	14,953	'
Total assets	-1,913,328	-1,578,569	'
Capital expenditures	$144	$65	'

Subsequent_Event_Additional_In

Subsequent Event - Additional Information (Detail) (USD $)	3 Months Ended							0 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Apr. 17, 2014	Jun. 30, 2014	Mar. 31, 2014	Mar. 31, 2014	Jan. 15, 2014
				Subsequent Event [Member]	Scenario, Forecast [Member]	Series B [Member]	Term Loan [Member]	Wright Insurance Group, LLC [Member]
Subsequent Event [Line Items]	'	'	'	'	'	'	'	'
Aggregate purchase price of acquisitions	$1,324,000	'	$1,071,000	'	'	'	'	$602,500,000
Additional consideration in cash	'	'	'	'	'	'	'	37,500,000
Unsecured revolving credit facility	'	'	'	800,000,000	'	'	'	'
Unsecured term loans	'	'	'	550,000,000	'	'	'	'
Aggregate amount	'	'	'	1,850,000,000	'	'	'	'
Line of credit facility termination period	16-Apr-19	'	'	'	'	'	'	'
Line of credit facility repayment period	'5 years	'	'	'	'	'	'	'
Reserve amount to pay off outstanding long term debt	480,000,000	480,000,000	'	'	'	'	230,000,000	'
Reserve amount to pay off notes	'	'	'	'	'	$100,000,000	'	'
Line of credit facility interest rate above adjusted libor rate	1.38%	'	'	'	1.38%	'	'	'