Discontinued Operations - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain from sale of discontinued operations, net of tax provision	$ 0	$ 0	$ 57,377
Angel.Com
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued operation, cash from sale			111,200
Discontinued operation, net cash from sale			100,700
Gain from sale of discontinued operations, net of tax provision			57,377
Discontinued operation, transaction costs			10,500
Angel.com revenues			6,300
Angel.com pre-tax loss			(1,000)
Pre-tax gain on sale Angel.com			$ 94,900

Transaction costs incurred in relation to the sale of a subsidiary.

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- Definition

Cash inflow during the period from the sale of a subsidiary, net of transaction costs incurred in relation to the sale.

+ References

No definition available.

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- Definition

Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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Amount of operating income (loss) attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation.

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- Definition

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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