SEGMENT REPORTING (Tables)

9 Months Ended

Sep. 30, 2012

Summary of Financial Information Concerning Company's Reportable Segments

Summarized financial information concerning the Company’s reportable segments for the three and nine months ended September 30, 2012 and 2011, is shown in the following tables:

Three Months Ended September 30, 2012	Gross Revenues		Intercompany Revenues(b)			Net Revenues		Operating Income Before Depreciation, Amortization, Gain (Loss) on Disposal of Assets and Gain From Litigation Settlement (c)
Western	$	228,906	$	(24,943	)	$	203,963	$	61,119
Central		142,940		(14,007	)		128,933		49,194
Eastern		112,753		(19,995	)		92,758		26,113
Corporate(a)		—		—			—		(1,992	)
	$	484,599	$	(58,945	)	$	425,654	$	134,434

Three Months Ended September 30, 2011	Gross Revenues		Intercompany Revenues(b)			Net Revenues		Operating Income Before Depreciation, Amortization, Gain (Loss) on Disposal of Assets and Gain From Litigation Settlement (c)
Western	$	223,156	$	(25,896	)	$	197,260	$	65,306
Central		126,389		(13,538	)		112,851		40,174
Eastern		112,140		(18,289	)		93,851		27,179
Corporate(a)		—		—			—		1,695
	$	461,685	$	(57,723	)	$	403,962	$	134,354

Nine Months Ended September 30, 2012	Gross Revenues		Intercompany Revenues(b)			Net Revenues		Operating Income Before Depreciation, Amortization, Gain (Loss) on Disposal of Assets and Gain From Litigation Settlement (c)
Western	$	660,679	$	(74,513	)	$	586,166	$	173,810
Central		393,433		(42,215	)		351,218		128,699
Eastern		332,883		(57,452	)		275,431		77,879
Corporate(a)		—		—			—		(9,823	)
	$	1,386,995	$	(174,180	)	$	1,212,815	$	370,565

Nine Months Ended September 30, 2011	Gross Revenues		Intercompany Revenues(b)			Net Revenues		Operating Income Before Depreciation, Amortization, Gain (Loss) on Disposal of Assets and Gain From Litigation Settlement (c)
Western	$	633,784	$	(74,407	)	$	559,377	$	177,593
Central		362,351		(38,589	)		323,762		115,261
Eastern		291,910		(49,435	)		242,475		70,856
Corporate(a)		—		—			—		3,351
	$	1,288,045	$	(162,431	)	$	1,125,614	$	367,061

(a) Corporate functions include accounting, legal, tax, treasury, information technology, risk management, human resources, training and other administrative functions. Amounts reflected are net of allocations to the three geographic operating segments.

(b) Intercompany revenues reflect each segment’s total intercompany sales, including intercompany sales within a segment and between segments. Transactions within and between segments are generally made on a basis intended to reflect the market value of the service.

(c) For those items included in the determination of operating income before depreciation, amortization, gain (loss) on disposal of assets and gain from litigation settlement, the accounting policies of the segments are the same as those described in the Company’s most recent Annual Report on Form 10-K.

Total Assets of Company's Reportable Segments

Total assets for each of the Company’s reportable segments at September 30, 2012 and December 31, 2011, were as follows:

	September 30, 2012		December 31, 2011
Western	$	1,505,949	$	1,370,098
Central		1,167,727		1,040,962
Eastern		829,757		841,251
Corporate		170,394		75,694
Total Assets	$	3,673,827	$	3,328,005

Changes In Goodwill by Reportable Segment

The following tables show changes in goodwill during the nine months ended September 30, 2012 and 2011, by reportable segment:

	Western		Central			Eastern		Total
Balance as of December 31, 2011	$	313,038	$	424,223		$	379,627	$	1,116,888
Goodwill acquired		60,043		6,690			238		66,971
Goodwill divested		—		(496	)		—		(496	)
Balance as of September 30, 2012	$	373,081	$	430,417		$	379,865	$	1,183,363

	Western		Central		Eastern			Total
Balance as of December 31, 2010	$	313,038	$	305,774	$	309,040		$	927,852
Goodwill transferred		—		111,806		(111,806	)		—
Goodwill acquired		—		6,638		173,157			179,795
Balance as of September 30, 2011	$	313,038	$	424,218	$	370,391		$	1,107,647

The Company has no accumulated impairment losses associated with goodwill.

Reconciliation of Company's Primary Measure of Segment Profitability to Income Before Income Tax Provision

A reconciliation of the Company’s primary measure of segment profitability (operating income before depreciation, amortization, gain (loss) on disposal of assets and gain from litigation settlement for reportable segments) to Income before income tax provision in the Condensed Consolidated Statements of Net Income is as follows:

	Three months ended September 30,						Nine months ended September 30,
	2012			2011			2012			2011
Operating income before depreciation, amortization, gain (loss) on disposal of assets and gain from litigation settlement	$	134,434		$	134,354		$	370,565		$	367,061
Depreciation		(42,313	)		(38,868	)		(119,331	)		(108,843	)
Amortization of intangibles		(6,267	)		(5,138	)		(18,115	)		(14,788	)
Loss on disposal of assets		(244	)		(1,034	)		(715	)		(742	)
Gain from litigation settlement		3,537			—			3,537			—
Interest expense		(11,949	)		(12,029	)		(36,063	)		(31,948	)
Interest income		333			132			630			408
Other income (expense), net		492			(899	)		1,033			(750	)
Income before income tax provision	$	78,023		$	76,518		$	201,541		$	210,398

Total Reported Revenues by Service Line

The following table shows, for the periods indicated, the Company’s total reported revenues by service line and with intercompany eliminations:

	Three months ended September 30,						Nine months ended September 30,
	2012			2011			2012			2011
Collection	$	304,166		$	282,176		$	880,920		$	796,783
Disposal and transfer		148,117			138,680			406,034			381,961
Intermodal, recycling and other		32,316			40,829			100,041			109,301
		484,599			461,685			1,386,995			1,288,045
Less: intercompany elimination		(58,945	)		(57,723	)		(174,180	)		(162,431	)
Total revenues	$	425,654		$	403,962		$	1,212,815		$	1,125,614