XML 50 R26.htm IDEA: XBRL DOCUMENT v2.4.1.9

Debt - Additional Information (Detail) (USD $)	1 Months Ended		3 Months Ended
	Mar. 19, 2015	Apr. 30, 2013	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Nov. 30, 2012	Apr. 30, 2012	May 19, 2015	May 08, 2012
Debt Instrument [Line Items]
Notes issued, aggregate principal amount			$ 344,367,000us-gaap_DebtInstrumentFaceAmount		$ 344,490,000us-gaap_DebtInstrumentFaceAmount
Notes initial conversion price			$ 11.70us-gaap_DebtInstrumentConvertibleConversionPrice1	$ 11.70us-gaap_DebtInstrumentConvertibleConversionPrice1
Long-term debt			326,629,000us-gaap_LongTermDebt		324,777,000us-gaap_LongTermDebt
Current portion of long-term debt			2,429,000us-gaap_LongTermDebtCurrent		496,000us-gaap_LongTermDebtCurrent
Debt issuance costs paid			1,994,000us-gaap_PaymentsOfDebtIssuanceCosts	0us-gaap_PaymentsOfDebtIssuanceCosts
Interest expense			5,173,000us-gaap_InterestExpense	5,717,000us-gaap_InterestExpense
Line of credit facility, decrease, repayments			163,000us-gaap_RepaymentsOfLinesOfCredit	175,000us-gaap_RepaymentsOfLinesOfCredit
Senior Secured Leverage Ratio		3.00 to 1.00
Debt Instrument Payment Percentage	1.00%wnc_DebtInstrumentPaymentPercentage
Loan Agreement
Debt Instrument [Line Items]
Notes issued, aggregate principal amount						2,500,000us-gaap_DebtInstrumentFaceAmount / us-gaap_StatementClassOfStockAxis = wnc_LoanAgreementMember
Notes issued, interest rate						4.25%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_StatementClassOfStockAxis = wnc_LoanAgreementMember
Long-term debt			1,500,000us-gaap_LongTermDebt / us-gaap_StatementClassOfStockAxis = wnc_LoanAgreementMember
Current portion of long-term debt			500,000us-gaap_LongTermDebtCurrent / us-gaap_StatementClassOfStockAxis = wnc_LoanAgreementMember
Convertible Senior Notes
Debt Instrument [Line Items]
Notes issued, aggregate principal amount							150,000,000us-gaap_DebtInstrumentFaceAmount / us-gaap_ShortTermDebtTypeAxis = wnc_ConvertibleSeniorNotesMember
Notes issued, interest rate							3.375%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_ShortTermDebtTypeAxis = wnc_ConvertibleSeniorNotesMember
Debt Instrument Maturity Year			2018
Unsecured Debt | Convertible Senior Notes
Debt Instrument [Line Items]
Notes initial conversion rate per 1,000 in principal amount			85.4372us-gaap_DebtInstrumentConvertibleConversionRatio1 / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember / us-gaap_ShortTermDebtTypeAxis = wnc_ConvertibleSeniorNotesMember
Principal amount of notes conversation for 85.4372 shares of common stock			1,000wnc_PrincipalAmountPerNoteUsedInConversionRate / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember / us-gaap_ShortTermDebtTypeAxis = wnc_ConvertibleSeniorNotesMember
Notes initial conversion price			$ 11.70us-gaap_DebtInstrumentConvertibleConversionPrice1 / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember / us-gaap_ShortTermDebtTypeAxis = wnc_ConvertibleSeniorNotesMember
Convertible notes, conversation date			Nov. 01, 2017
Proceeds from notes issued			1,000us-gaap_ProceedsFromIssuanceOfLongTermDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember / us-gaap_ShortTermDebtTypeAxis = wnc_ConvertibleSeniorNotesMember
Estimated implied interest rate			7.00%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember / us-gaap_ShortTermDebtTypeAxis = wnc_ConvertibleSeniorNotesMember
Fair value of liability component upon issuance			123,800,000us-gaap_DebtInstrumentFairValue / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember / us-gaap_ShortTermDebtTypeAxis = wnc_ConvertibleSeniorNotesMember
Difference between cash proceeds before offering expenses and the estimated fair value of liability component			21,700,000us-gaap_DebtInstrumentUnamortizedPremium / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember / us-gaap_ShortTermDebtTypeAxis = wnc_ConvertibleSeniorNotesMember
Proceeds from issuance of convertible senior notes			145,500,000us-gaap_ProceedsFromIssuanceOfUnsecuredDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember / us-gaap_ShortTermDebtTypeAxis = wnc_ConvertibleSeniorNotesMember
Debt Conversion, Converted Instrument, Amount			31,000,000us-gaap_DebtConversionConvertedInstrumentAmount1 / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember / us-gaap_ShortTermDebtTypeAxis = wnc_ConvertibleSeniorNotesMember
Unsecured Debt | Convertible Senior Notes | Walker Group Holdings Llc [Member]
Debt Instrument [Line Items]
Proceeds from issuance of convertible senior notes			145,100,000us-gaap_ProceedsFromIssuanceOfUnsecuredDebt / dei_LegalEntityAxis = wnc_WalkerGroupHoldingsLlcMember / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember / us-gaap_ShortTermDebtTypeAxis = wnc_ConvertibleSeniorNotesMember
Unsecured Debt | Convertible Senior Notes | Scenario 1
Debt Instrument [Line Items]
Number of consecutive trading days				30 days
Last reported sale price of common stock as percentage of conversion price			130.00%wnc_DebtInstrumentConversionCircumstanceCommonStockPriceAsPercentageOfDebtConversionPrice / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember / us-gaap_ShortTermDebtTypeAxis = wnc_ConvertibleSeniorNotesMember / us-gaap_StatementClassOfStockAxis = wnc_ScenarioOneMember
Unsecured Debt | Convertible Senior Notes | Scenario 2
Debt Instrument [Line Items]
Convertible senior notes, trading price per $1,000 principal amount of notes as percentage of the product of the last reported sale price of common stock and the conversion rate			98.00%wnc_TradingPriceOfConvertibleNotesDuringMeasurementPeriodPercentage / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember / us-gaap_ShortTermDebtTypeAxis = wnc_ConvertibleSeniorNotesMember / us-gaap_StatementClassOfStockAxis = wnc_ScenarioTwoMember
Amended Credit Agreement
Debt Instrument [Line Items]
Interest Paid			2,200,000us-gaap_InterestPaid / us-gaap_LongtermDebtTypeAxis = wnc_AmendedCreditAgreementMember	2,700,000us-gaap_InterestPaid / us-gaap_LongtermDebtTypeAxis = wnc_AmendedCreditAgreementMember
Current portion of long-term debt								1,900,000us-gaap_LongTermDebtCurrent / us-gaap_LongtermDebtTypeAxis = wnc_AmendedCreditAgreementMember
Debt issuance costs paid	900,000us-gaap_PaymentsOfDebtIssuanceCosts / us-gaap_LongtermDebtTypeAxis = wnc_AmendedCreditAgreementMember
Interest expense			100,000us-gaap_InterestExpense / us-gaap_LongtermDebtTypeAxis = wnc_AmendedCreditAgreementMember	200,000us-gaap_InterestExpense / us-gaap_LongtermDebtTypeAxis = wnc_AmendedCreditAgreementMember
Other Expenses			5,300,000us-gaap_OtherExpenses / us-gaap_LongtermDebtTypeAxis = wnc_AmendedCreditAgreementMember
Amended Credit Agreement | Loan Agreement
Debt Instrument [Line Items]
Notes issued, aggregate principal amount					700,000us-gaap_DebtInstrumentFaceAmount / us-gaap_LongtermDebtTypeAxis = wnc_AmendedCreditAgreementMember / us-gaap_StatementClassOfStockAxis = wnc_LoanAgreementMember
Revolving Credit Facility
Debt Instrument [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity			269,400,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity / us-gaap_LineOfCreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember
Revolving Credit Facility | Amended and Restated Credit Agreement
Debt Instrument [Line Items]
Credit facility, maturity date			May 08, 2017
Credit facility, borrowing capacity			150,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_LineOfCreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = wnc_AmendedAndRestatedCreditAgreementMember
Credit facility, unused line fee monthly payment			0.375%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage / us-gaap_LineOfCreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = wnc_AmendedAndRestatedCreditAgreementMember
Line of Credit Facility, Amount Outstanding			25,000,000us-gaap_LineOfCredit / us-gaap_LineOfCreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = wnc_AmendedAndRestatedCreditAgreementMember
Revolving Credit Facility | Amended and Restated Credit Agreement | Option to increase subject to certain conditions
Debt Instrument [Line Items]
Credit facility, borrowing capacity			200,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_LineOfCreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = wnc_AmendedAndRestatedCreditAgreementMember / us-gaap_StatementClassOfStockAxis = wnc_Scenario1Member
Revolving Credit Facility | Amended and Restated Credit Agreement | Swing Line Loan
Debt Instrument [Line Items]
Credit facility, borrowing capacity			10,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtSecurityAxis = wnc_SwinglineLoansMember / us-gaap_LineOfCreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = wnc_AmendedAndRestatedCreditAgreementMember
Term Loan Credit Facilty
Debt Instrument [Line Items]
Notes issued, aggregate principal amount			192,845,000us-gaap_DebtInstrumentFaceAmount / us-gaap_LineOfCreditFacilityAxis = wnc_TermLoanCreditFaciltyMember		192,845,000us-gaap_DebtInstrumentFaceAmount / us-gaap_LineOfCreditFacilityAxis = wnc_TermLoanCreditFaciltyMember
Credit facility, maturity date	Mar. 19, 2022
Interest coverage ratio	1.00%wnc_InterestCoverageRatio / us-gaap_LineOfCreditFacilityAxis = wnc_TermLoanCreditFaciltyMember
Line of credit facility potential term extension period	91 days
Debt amortization percentage	1.00%wnc_DebtAmortizationPercentage / us-gaap_LineOfCreditFacilityAxis = wnc_TermLoanCreditFaciltyMember
Percentage of tranche loan amount on equal quarterly installments	0.25%wnc_PercentageOfTrancheLoanAmountOnEqualQuarterlyInstallments / us-gaap_LineOfCreditFacilityAxis = wnc_TermLoanCreditFaciltyMember
Term Loan Credit Facilty | Senior Secured Credit Facility
Debt Instrument [Line Items]
Line of Credit Facility, Amount Outstanding									300,000,000us-gaap_LineOfCredit / us-gaap_LineOfCreditFacilityAxis = wnc_TermLoanCreditFaciltyMember / us-gaap_LongtermDebtTypeAxis = wnc_SeniorSecuredCreditFacilityMember
Term Loan Credit Facilty | Incremental Senior Credit Facility
Debt Instrument [Line Items]
Credit facility, borrowing capacity		75,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_LineOfCreditFacilityAxis = wnc_TermLoanCreditFaciltyMember / us-gaap_LongtermDebtTypeAxis = wnc_IncrementalSeniorCreditFacilityMember
Term Loan Credit Facilty | Amended Credit Agreement
Debt Instrument [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity		297,000,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity / us-gaap_LineOfCreditFacilityAxis = wnc_TermLoanCreditFaciltyMember / us-gaap_LongtermDebtTypeAxis = wnc_AmendedCreditAgreementMember
Long-term debt		277,000,000us-gaap_LongTermDebt / us-gaap_LineOfCreditFacilityAxis = wnc_TermLoanCreditFaciltyMember / us-gaap_LongtermDebtTypeAxis = wnc_AmendedCreditAgreementMember
Line of credit facility, decrease, repayments		20,000,000us-gaap_RepaymentsOfLinesOfCredit / us-gaap_LineOfCreditFacilityAxis = wnc_TermLoanCreditFaciltyMember / us-gaap_LongtermDebtTypeAxis = wnc_AmendedCreditAgreementMember
Term Loan Credit Facilty Libor
Debt Instrument [Line Items]
Credit facility, interest rate above basis	3.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LineOfCreditFacilityAxis = wnc_TermLoanCreditFaciltyLiborMember
Term Loan Credit Facilty Base Rate
Debt Instrument [Line Items]
Credit facility, interest rate above basis	2.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LineOfCreditFacilityAxis = wnc_TermLoanCreditFaciltyBaseRateMember
Letter Of Credit Subfacility | Revolving Credit Facility | Amended and Restated Credit Agreement
Debt Instrument [Line Items]
Credit facility, borrowing capacity			15,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = wnc_LetterOfCreditSubfacilityMember / us-gaap_LineOfCreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = wnc_AmendedAndRestatedCreditAgreementMember
Revolving Credit Facility Scenario One [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage			15.00%us-gaap_LineOfCreditFacilityCommitmentFeePercentage / us-gaap_CreditFacilityAxis = wnc_RevolvingCreditFacilityScenarioOneMember
Revolving Credit Facility Scenario Two [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage			12.50%us-gaap_LineOfCreditFacilityCommitmentFeePercentage / us-gaap_CreditFacilityAxis = wnc_RevolvingCreditFacilityScenarioTwoMember
Minimum
Debt Instrument [Line Items]
Debt Conversion, Converted Instrument, Amount	125,000,000us-gaap_DebtConversionConvertedInstrumentAmount1 / us-gaap_RangeAxis = us-gaap_MinimumMember
Minimum | Revolving Credit Facility | Amended and Restated Credit Agreement
Debt Instrument [Line Items]
Required minimum fixed charge coverage ratio when availability under the Revolver is less than 12.5% of the total revolving commitment			1.0wnc_FixedChargeCoverageRatioMinimum / us-gaap_LineOfCreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = wnc_AmendedAndRestatedCreditAgreementMember / us-gaap_RangeAxis = us-gaap_MinimumMember
Minimum | Revolving Credit Facility | Amended and Restated Credit Agreement | LIBOR
Debt Instrument [Line Items]
Credit facility, interest rate above basis			1.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtSecurityAxis = wnc_LondonInterBankOfferedRateMember / us-gaap_LineOfCreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = wnc_AmendedAndRestatedCreditAgreementMember / us-gaap_RangeAxis = us-gaap_MinimumMember
Minimum | Revolving Credit Facility | Amended and Restated Credit Agreement | Base Rate
Debt Instrument [Line Items]
Credit facility, interest rate above basis			0.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtSecurityAxis = us-gaap_BaseRateMember / us-gaap_LineOfCreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = wnc_AmendedAndRestatedCreditAgreementMember / us-gaap_RangeAxis = us-gaap_MinimumMember
Maximum | Revolving Credit Facility | Amended and Restated Credit Agreement
Debt Instrument [Line Items]
Required minimum fixed charge coverage ratio when availability under the Revolver is less than 12.5% of the total revolving commitment			1.1wnc_FixedChargeCoverageRatioMinimum / us-gaap_LineOfCreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = wnc_AmendedAndRestatedCreditAgreementMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Maximum | Revolving Credit Facility | Amended and Restated Credit Agreement | LIBOR
Debt Instrument [Line Items]
Credit facility, interest rate above basis			2.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtSecurityAxis = wnc_LondonInterBankOfferedRateMember / us-gaap_LineOfCreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = wnc_AmendedAndRestatedCreditAgreementMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Maximum | Revolving Credit Facility | Amended and Restated Credit Agreement | Base Rate
Debt Instrument [Line Items]
Credit facility, interest rate above basis			1.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtSecurityAxis = us-gaap_BaseRateMember / us-gaap_LineOfCreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = wnc_AmendedAndRestatedCreditAgreementMember / us-gaap_RangeAxis = us-gaap_MaximumMember

X

- Definition

The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586



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X

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

The price per share of the conversion feature embedded in the debt instrument.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 20

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X

- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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-Publisher FASB

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-Topic 505

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-Section 02

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- Definition

Latest date when the debt instrument can be converted into equity, in CCYY-MM-DD format.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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-Name Accounting Standards Codification

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X

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

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- Definition

The amount of debt premium that was originally recognized at the issuance of the instrument that has yet to be amortized.

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Amount of the cost of borrowed funds accounted for as interest expense.

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The amount of cash paid for interest during the period.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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This element represents a sum total of expenses not separately reflected on the income statement for the period.

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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The cash inflow from the issuance of long-term debt that is not secured by collateral. Excludes proceeds from tax exempt unsecured debt.

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Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Represents the percentage of amortization of debt.

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Represents the percentage of debt conversion price of the debt instrument conversion into common stock.

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Number of consecutive trading days for debt instrument conversion.

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Represents the maturity year of debt instrument.

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Represents the percentage of payment of debt instrument.

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Represents the minimum ratio for coverage of fixed charge.

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Represents the percentage of interest coverage.

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Extension period for potential term of line of credit facility.

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Percentage of tranche loan amount on equal quarterly installments

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Represents the principal amount for per note used in conversion rate.

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Senior secured leverage ratio

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Trading Price Of Convertible Notes During Measurement Period Percentage

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