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Comprehensive Income (Loss) (Tables)

6 Months Ended

Jun. 30, 2012

Stockholders' Equity and Comprehensive Income [Abstract]

Components of other comprehensive income (loss)


		Three months ended June 30, 2012
		Gross				Tax effect				Net of tax
Interest rate swap amounts reclassified into interest expense		$	1,366			$	(519	)		$	847
Fuel hedge amount reclassified into cost of operations			(1,105	)			420				(685	)
Changes in fair value of interest rate swaps			(3,791	)			1,441				(2,350	)
Change in fair value of fuel hedges			(799	)			303				(496	)

		$	(4,329	)		$	1,645			$	(2,684	)


		Three months ended June 30, 2011
		Gross				Tax effect				Net of tax
Interest rate swap amounts reclassified into interest expense		$	1,589			$	(604	)		$	985
Fuel hedge amounts reclassified into cost of operations			(1,278	)			486				(792	)
Changes in fair value of interest rate swaps			(2,670	)			1,015				(1,655	)
Changes in fair value of fuel hedges			(724	)			275				(449	)

		$	(3,083	)		$	1,172			$	(1,911	)


		Six months ended June 30, 2012
		Gross				Tax effect				Net of tax
Interest rate swap amounts reclassified into interest expense		$	2,506			$	(952	)		$	1,554
Fuel hedge amount reclassified into cost of operations			(2,234	)			849				(1,385	)
Changes in fair value of interest rate swaps			(4,793	)			1,821				(2,972	)
Change in fair value of fuel hedges			673				(256	)			417

		$	(3,848	)		$	1,462			$	(2,386	)


		Six months ended June 30, 2011
		Gross				Tax effect				Net of tax
Interest rate swap amounts reclassified into interest expense		$	3,455			$	(1,313	)		$	2,142
Fuel hedge amounts reclassified into cost of operations			(2,088	)			794				(1,294	)
Changes in fair value of interest rate swaps			(2,603	)			989				(1,614	)
Changes in fair value of fuel hedges			3,924				(1,491	)			2,433

		$	2,688			$	(1,021	)		$	1,667

Amounts included in AOCL


		Fuel Hedge				Interest Rate Swaps				Accumulated Other Comprehensive Loss
Balance at December 31, 2011		$	2,172			$	(5,652	)		$	(3,480	)
Amounts reclassified into earnings			(1,385	)			1,554				169
Changes in fair value			417				(2,972	)			(2,555	)

Balance at June 30, 2012		$	1,204			$	(7,070	)		$	(5,866	)

Tabular disclosure of components of comprehensive income (loss) including, but not limited to: (a) foreign currency translation adjustments; (b) gains (losses) on foreign currency transactions that are designated as, and are effective as, economic hedges of a net investment in a foreign entity; (c) gains (losses) on intercompany foreign currency transactions that are of a long-term-investment nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements; (d) change in the market value of a futures contract that qualifies as a hedge of an asset reported at fair value; (e) unrealized holding gains (losses) on available-for-sale securities and that resulting from transfers of debt securities from the held-to-maturity category to the available-for-sale category; (f) a net loss recognized as an additional pension liability not yet recognized as net periodic pension cost; and (g) the net gain (loss) and net prior service cost or credit for pension plans and other postretirement benefit plans.

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