SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
ValuationAndQualifyingAccountsDisclosureLineItems
Valuation Allowances and Reserves, Balance, Beginning Balance	$ 17,895	$ 23,478	$ 6,321
ValuationAllowancesAndReservesChargedToCostAndExpense	1,951	2,605	18,535
ValuationAllowancesAndReservesChargedToOtherAccounts	(181)	(299)	(263)
ValuationAllowancesAndReservesDeductions	1,889	7,889	1,115
Valuation Allowances and Reserves, Balance, Ending Balance	17,776	17,895	23,478
ValuationAllowanceOfDeferredTaxAssetsMember
ValuationAndQualifyingAccountsDisclosureLineItems
Valuation Allowances and Reserves, Balance, Beginning Balance	17,895	23,478	6,321
ValuationAllowancesAndReservesChargedToCostAndExpense	1,951	2,605	18,535
ValuationAllowancesAndReservesChargedToOtherAccounts	(181)	(299)	(263)
ValuationAllowancesAndReservesDeductions	1,889	7,889	1,115
Valuation Allowances and Reserves, Balance, Ending Balance	$ 17,776	$ 17,895	$ 23,478

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.

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

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Amount of increase in the allowances and reserves, which consist of the valuation and qualifying accounts that are either netted against the cost of an asset or that reflect a liability established to represent expected future costs, from charges to costs and expenses.

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Total of the deductions in a given period to 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, representing receivables written off as uncollectible and portions of the reserves utilized, respectively.

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