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Schedule II - Valuation and Qualifying Accounts (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Valuation Allowance for Deferred Tax Assets [Member] |  |  |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |  |  |
Valuation allowance, Beginning balance | [1] | $ 47,545 | $ 150,384 | $ 82,876
Valuation allowance, Additions/Charges to Expense | [1] | 4,219 | (109,805) | 71,826
Valuation allowance, Deductions/ Other | [1] | (2,016) | 6,966 | (4,318)
Valuation allowance, Ending balance | [1] | 49,748 | 47,545 | 150,384
Valuation Allowance for Accounts Receivable [Member] |  |  |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |  |  |
Valuation allowance, Beginning balance |  | 20,229 | 19,097 | 27,504
Valuation allowance, Additions/Charges to Expense |  | 32,049 | 22,212 | 14,864
Valuation allowance, Deductions/ Other |  | (29,136) | (21,080) | (23,271)
Valuation allowance, Ending balance |  | $ 23,142 | $ 20,229 | $ 19,097
[1] | Amounts include both continuing and discontinued operations gross deferred tax balances.

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- Definition Valuation allowances and reserves deductions or other. + References No definition available. + Details
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- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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