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Taxes - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Income Taxes [Line Items] |  |  |
(Provision for) benefit from income taxes | $ 10,346 | $ (744) | $ (10,948)
Percentage prohibited transaction tax for not meeting the requirements of statutory relief | 100.00% |  |
Federal |  |  |
Income Taxes [Line Items] |  |  |
Estimated operating loss carry forwards | $ 70,000 |  |
Net Operating Loss carry forwards | 97,000 |  |
Net Operating Loss carry forwards, expiring year |  | 2028 |
Federal | Minimum |  |  |
Income Taxes [Line Items] |  |  |
Net Operating Loss carry forwards, expiring year |  | 2030 |
Federal | Maximum |  |  |
Income Taxes [Line Items] |  |  |
Net Operating Loss carry forwards, expiring year |  | 2035 |
State and Local Jurisdiction |  |  |
Income Taxes [Line Items] |  |  |
Net Operating Loss carry forwards | $ 1,300,000 |  |

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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Income Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6515339 + Details
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