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Discontinued Operations and Divestitures - Gains on the Disposals of Discontinued Operations (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Discontinued Operations And Disposal Groups [Abstract]
Gain on disposal of discontinued operations, before income tax		$ 28	$ 36	$ 63
Income tax (benefit) expense	(1,905)	10	(1,892)	23
Gain on disposal of discontinued operations, net of tax	$ 1,905	$ 18	$ 1,928	$ 40

X

- Definition

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

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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