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Provision for Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Income Tax [Line Items] |  |  |  |
State and Local effective income tax rate | 49.00% | 21.00% | 2.00% | 22.00%
Increase in tax rate due to adjusting tax rates |  |  | 23.00% |
Provision (benefit) expense for income taxes | $ 674 | $ 1,617 | $ (46) | $ 3,073
Change in effective tax rate | 15.00% |  |  |
Increase in tax rate due to adjusting tax rates |  |  | 10.00% |
Change in effective tax rate |  |  | 7.00% |
Interest and penalties recognized on uncertain tax positions | $ 200 |  | $ 200 |
Maximum [Member] |  |  |  |
Income Tax [Line Items] |  |  |  |
Increase in tax rate due to adjusting tax rates | 23.00% |  |  |
Minimum [Member] |  |  |  |
Income Tax [Line Items] |  |  |  |
Increase in tax rate due to adjusting tax rates | 10.00% |  |  |

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- Definition Percentage 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 13 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32698-109319 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)(2)) -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 -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32687-109319 + Details
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