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Income Taxes - Summary of Net Operating Loss Carryforwards (Detail) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 USD ($)
Operating Loss Carryforwards [Line Items] |
Carryforward | $ 74,927
NOL Carryforward [Member] |
Operating Loss Carryforwards [Line Items] |
Carryforward | 58,110
NOL Carryforward [Member] | Foreign Tax Authority [Member] |
Operating Loss Carryforwards [Line Items] |
Carryforward | 3,101
NOL Carryforward [Member] | Canada Revenue Agency [Member] |
Operating Loss Carryforwards [Line Items] |
Carryforward | $ 39,375
Expiration | 2024
Expiration | 2036
NOL Carryforward [Member] | Internal Revenue Service (IRS) [Member] |
Operating Loss Carryforwards [Line Items] |
Carryforward | $ 15,634
Expiration | 2017
Expiration | 2036
Other Carryforwards [Member] |
Operating Loss Carryforwards [Line Items] |
Carryforward | $ 16,817
Other Carryforwards [Member] | Foreign Tax Authority [Member] |
Operating Loss Carryforwards [Line Items] |
Carryforward | $ 1,934
Expiration | 2017
Expiration | 2018
Other Carryforwards [Member] | Canada Revenue Agency [Member] |
Operating Loss Carryforwards [Line Items] |
Carryforward | $ 14,883

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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 + Details
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- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Carryforwards -URI http://asc.fasb.org/extlink&oid=6506874 + Details
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