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Income Taxes - Additional Information (Detail) - USD ($) | 9 Months Ended |
--- | --- | ---
Sep. 30, 2015 | Jan. 01, 2015
Income Taxes [Line Items] |  |
Unrecognized tax benefits |  | $ 2,000,000
Impact of unrecognized tax benefits if recognized |  | $ 2,000,000
Jurisdictions statutes of limitations expiration period | 12 months |
Period of expiration of the statute of limitations for certain jurisdictions | within the next twelve months |
Minimum |  |
Income Taxes [Line Items] |  |
Foreign and U.S. state and local jurisdictions have statutes of limitations, in years | 3 years |
Maximum |  |
Income Taxes [Line Items] |  |
Foreign and U.S. state and local jurisdictions have statutes of limitations, in years | 4 years |
Accrued interest and penalties | $ 1,000,000 |

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- Definition The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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- Definition Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Unrecognized Tax Benefit -URI http://asc.fasb.org/extlink&oid=6527854 + Details
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- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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