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Corporate Restructuring and Other Organizational Changes - Additional Information (Detail) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2017 | Dec. 31, 2016
General and Administrative Expense [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Lease termination fee | $ 400 |
Facility Closures [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | 4,165 | $ 4,559
Facility Closures [Member] | Other Current Liabilities [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | 1,200 |
Facility Closures [Member] | Other Noncurrent Liabilities [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | $ 3,000 |

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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 + Details
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