Discontinued Operations (Details) (USD $)	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	1 Months Ended	3 Months Ended	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2011 SunCor	Sep. 30, 2012 SunCor	Sep. 30, 2011 SunCor	Aug. 31, 2011 APSES	Sep. 30, 2011 APSES	Sep. 30, 2011 APSES
Discontinued Operations
After-tax gain from discontinued operations								$ 10,000,000
Revenue		12,000,000		40,000,000	1,000,000		4,000,000		11,000,000	36,000,000
Income (loss) before taxes		16,000,000	(3,000,000)	18,000,000	(2,000,000)	(3,000,000)	(2,000,000)		18,000,000	20,000,000
Income (loss) after taxes	$ (11,000)	$ 9,521,000	$ (1,604,000)	$ 10,908,000	$ (1,000,000)	$ (2,000,000)	$ (1,000,000)		$ 10,000,000	$ 12,000,000

Amount of gain (loss), after tax expense or benefit and not previously recognized, resulting from the sale of a business component.

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Overall income (loss) from a disposal group that is classified as a component of the entity, before income tax, reported as a separate component of income before extraordinary items. Includes the following (before income tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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- Definition

Amount of income (loss) from a disposal group, net of income tax, reported as a separate component of income before extraordinary items after deduction or consideration of the amount allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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