Segment Reporting (Tables)

9 Months Ended

Sep. 30, 2013

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, 2013 and 2012, is shown in the following tables:

Three Months Ended September 30, 2013	Gross Revenues		Intercompany Revenues(b)			Net Revenues		EBITDA(c)
Western	$	236,849	$	(26,638	)	$	210,211	$	67,773
Central		151,181		(16,848	)		134,333		48,845
Eastern		115,944		(19,884	)		96,060		28,038
E&P		65,376		(2,334	)		63,042		31,125
Corporate(a)		—		—			—		188
	$	569,350	$	(65,704	)	$	503,646	$	175,969

Three Months Ended September 30, 2012	Gross Revenues		Intercompany Revenues(b)			Net Revenues		EBITDA(c)
Western	$	228,906	$	(24,943	)	$	203,963	$	61,119
Central		139,802		(14,007	)		125,795		47,072
Eastern		112,753		(19,995	)		92,758		26,113
E&P		3,138		—			3,138		2,122
Corporate(a)		—		—			—		(1,992	)
	$	484,599	$	(58,945	)	$	425,654	$	134,434

Nine Months Ended September 30, 2013	Gross Revenues		Intercompany Revenues(b)			Net Revenues		EBITDA(c)
Western	$	682,705	$	(76,510	)	$	606,195	$	188,736
Central		426,353		(46,993	)		379,360		137,600
Eastern		336,916		(57,362	)		279,554		82,947
E&P		186,255		(8,446	)		177,809		82,036
Corporate(a)		—		—			—		(2,679	)
	$	1,632,229	$	(189,311	)	$	1,442,918	$	488,640

Nine Months Ended September 30, 2012	Gross Revenues		Intercompany Revenues(b)			Net Revenues		EBITDA(c)
Western	$	660,679	$	(74,513	)	$	586,166	$	173,810
Central		384,520		(42,215	)		342,305		122,688
Eastern		332,883		(57,452	)		275,431		77,879
E&P		8,913		—			8,913		6,011
Corporate(a)		—		—			—		(9,823	)
	$	1,386,995	$	(174,180	)	$	1,212,815	$	370,565

(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 four 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 EBITDA, the accounting policies of the segments are the same as those described in the Company’s most recent Annual Report on Form 10-K.

Changes In Goodwill by Reportable Segment

The following tables show changes in goodwill during the nine months ended September 30, 2013 and 2012, by reportable segment:

	Western			Central			Eastern		E&P		Total
Balance as of December 31, 2012	$	373,143		$	430,412		$	380,561	$	452,441	$	1,636,557
Goodwill transferred		—			(9,196	)		—		9,196		—
Goodwill acquired		521			70			567		575		1,733
Goodwill divested		(749	)		—			—		—		(749	)
Balance as of September 30, 2013	$	372,915		$	421,286		$	381,128	$	462,212	$	1,637,541

	Western		Central			Eastern		E&P		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

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 (EBITDA) 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,
	2013			2012			2013			2012
Western segment EBITDA	$	67,773		$	61,119		$	188,736		$	173,810
Central segment EBITDA		48,845			47,072			137,600			122,688
Eastern segment EBITDA		28,038			26,113			82,947			77,879
E&P segment EBITDA		31,125			2,122			82,036			6,011
Subtotal reportable segments		175,781			136,426			491,319			380,388
Unallocated corporate overhead		188			(1,992	)		(2,679	)		(9,823	)
Depreciation		(55,863	)		(42,313	)		(162,277	)		(119,331	)
Amortization of intangibles		(6,211	)		(6,267	)		(18,861	)		(18,115	)
Gain (loss) on disposal of assets		1,129			(244	)		(1,993	)		(715	)
Gain (loss) on prior office leases		596			—			(9,902	)		—
Gain from litigation settlement		—			3,537			—			3,537
Interest expense		(17,911	)		(11,949	)		(55,851	)		(36,063	)
Other income (expense), net		845			825			(119	)		1,663
Income before income tax provision	$	98,554		$	78,023		$	239,637		$	201,541

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,
	2013			2012			2013			2012
Solid waste collection	$	312,872		$	304,166		$	912,488		$	880,920
Solid waste disposal and transfer		158,142			142,293			434,513			390,576
E&P waste treatment, disposal and recovery		68,605			5,824			194,720			15,458
Solid waste recycling		18,402			18,712			55,806			61,809
Intermodal and other		11,329			13,604			34,702			38,232
		569,350			484,599			1,632,229			1,386,995
Less: intercompany elimination		(65,704	)		(58,945	)		(189,311	)		(174,180	)
Total revenues	$	503,646		$	425,654		$	1,442,918		$	1,212,815