v2.4.1.9

Summary of Changes in Restructuring-Related Liabilities (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Restructuring Cost and Reserve [Line Items] |  |  |
Costs Incurred | $ 14,732us-gaap_RestructuringCharges | $ 0us-gaap_RestructuringCharges | $ 0us-gaap_RestructuringCharges
Accrued restructuring costs | Current accrued restructuring costs |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Beginning Balance | 0us-gaap_RestructuringReserve / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember |  |
Costs Incurred | 14,732us-gaap_RestructuringCharges / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember |  |
Cash Payments | (12,008)us-gaap_PaymentsForRestructuring / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember |  |
Non-cash Settlements | (441)us-gaap_RestructuringReserveSettledWithoutCash1 / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember |  |
Adjustments and Other | 1us-gaap_RestructuringReserveAccrualAdjustment / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember |  |
Ending Balance | 2,284us-gaap_RestructuringReserve / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember |  |
Accrued restructuring costs | Current accrued restructuring costs | Severance and related employee benefits |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Beginning Balance | 0us-gaap_RestructuringReserve / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember / us-gaap_RestructuringCostAndReserveAxis = us-gaap_EmployeeSeveranceMember |  |
Costs Incurred | 13,162us-gaap_RestructuringCharges / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember / us-gaap_RestructuringCostAndReserveAxis = us-gaap_EmployeeSeveranceMember |  |
Cash Payments | (10,746)us-gaap_PaymentsForRestructuring / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember / us-gaap_RestructuringCostAndReserveAxis = us-gaap_EmployeeSeveranceMember |  |
Non-cash Settlements | 0us-gaap_RestructuringReserveSettledWithoutCash1 / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember / us-gaap_RestructuringCostAndReserveAxis = us-gaap_EmployeeSeveranceMember |  |
Adjustments and Other | (201)us-gaap_RestructuringReserveAccrualAdjustment / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember / us-gaap_RestructuringCostAndReserveAxis = us-gaap_EmployeeSeveranceMember |  |
Ending Balance | 2,215us-gaap_RestructuringReserve / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember / us-gaap_RestructuringCostAndReserveAxis = us-gaap_EmployeeSeveranceMember |  |
Accrued restructuring costs | Current accrued restructuring costs | Contract termination costs |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Beginning Balance | 0us-gaap_RestructuringReserve / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember / us-gaap_RestructuringCostAndReserveAxis = us-gaap_ContractTerminationMember |  |
Costs Incurred | 1,159us-gaap_RestructuringCharges / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember / us-gaap_RestructuringCostAndReserveAxis = us-gaap_ContractTerminationMember |  |
Cash Payments | (960)us-gaap_PaymentsForRestructuring / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember / us-gaap_RestructuringCostAndReserveAxis = us-gaap_ContractTerminationMember |  |
Non-cash Settlements | (441)us-gaap_RestructuringReserveSettledWithoutCash1 / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember / us-gaap_RestructuringCostAndReserveAxis = us-gaap_ContractTerminationMember |  |
Adjustments and Other | 242us-gaap_RestructuringReserveAccrualAdjustment / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember / us-gaap_RestructuringCostAndReserveAxis = us-gaap_ContractTerminationMember |  |
Ending Balance | 0us-gaap_RestructuringReserve / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember / us-gaap_RestructuringCostAndReserveAxis = us-gaap_ContractTerminationMember |  |
Accrued restructuring costs | Current accrued restructuring costs | Other costs |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Beginning Balance | 0us-gaap_RestructuringReserve / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember / us-gaap_RestructuringCostAndReserveAxis = us-gaap_OtherRestructuringMember |  |
Costs Incurred | 411us-gaap_RestructuringCharges / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember / us-gaap_RestructuringCostAndReserveAxis = us-gaap_OtherRestructuringMember |  |
Cash Payments | (302)us-gaap_PaymentsForRestructuring / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember / us-gaap_RestructuringCostAndReserveAxis = us-gaap_OtherRestructuringMember |  |
Non-cash Settlements | 0us-gaap_RestructuringReserveSettledWithoutCash1 / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember / us-gaap_RestructuringCostAndReserveAxis = us-gaap_OtherRestructuringMember |  |
Adjustments and Other | (40)us-gaap_RestructuringReserveAccrualAdjustment / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember / us-gaap_RestructuringCostAndReserveAxis = us-gaap_OtherRestructuringMember |  |
Ending Balance | $ 69us-gaap_RestructuringReserve / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherCurrentLiabilitiesMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AccruedLiabilitiesMember / us-gaap_RestructuringCostAndReserveAxis = us-gaap_OtherRestructuringMember |  |

X
- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 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) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: 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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 + Details
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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 SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 + Details
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- Definition Amount of any reversal and other adjustment made during the period to the amount of a previously accrued liability for a specified type of restructuring cost, excluding adjustments for costs incurred during the period, costs settled during the period, and foreign currency translation adjustments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: 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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 40 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6394291&loc=d3e17658-110867 + Details
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- Definition Amount of consideration other than cash used to fully or partially settle an accrued restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 Reference 3: 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)(2)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 + Details
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