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v3.19.3.a.u2

DEBT - DEBT (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 12 Months Ended | 24 Months Ended
--- | --- | --- | ---
Sep. 30, 2024 | Jun. 14, 2022 | Jun. 14, 2021 | Jun. 14, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 15, 2021
Debt Instrument [Line Items] |  |  |  |  |  |  |
Characteristics of Securitizations or Asset-backed Financing Arrangements that are Accounted for as Sale |  |  |  |  | Under the Receivables Facility, WESCO sells, on a continuous basis, an undivided interest in all domestic accounts receivable to WESCO Receivables, a wholly owned special purpose entity (the “SPE”). The SPE sells, without recourse, a senior undivided interest in the receivables to financial institutions for cash while maintaining a subordinated undivided interest in the receivables, in the form of overcollateralization. Since WESCO maintains control of the transferred receivables, the transfers do not qualify for “sale” treatment. As a result, the transferred receivables remain on the balance sheet, and WESCO recognizes the related secured borrowing. WESCO has agreed to continue servicing the sold receivables for the third-party conduits and financial institutions at market rates; accordingly, no servicing asset or liability has been recorded. |  |
Accounts Receivable from Securitization |  |  |  |  | $ 415,000 | $ 275,000 |
Debt Issuance Costs, Net |  |  |  |  | $ (8,876) | $ (9,575) |
Foreign Line of Credit [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt, Weighted Average Interest Rate |  |  |  |  | 6.32% | 8.78% |
Long-term debt |  |  |  |  | $ 26,255 | $ 30,785 |
Term Loan Facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt discount on convertible debentures |  |  |  |  | $ 0 | (156) |
Senior Notes [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Maturity Date |  |  |  |  | Dec. 15, 2021 |  |
Long-term debt |  |  |  |  | $ 500,000 | 500,000 |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  | 5.375% |  |
Deferred Finance Costs, Gross |  |  |  |  | $ 8,400 |  |
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed |  |  |  |  | 101.00% |  |
Debt Instrument, Face Amount |  |  |  |  | $ 500,000 |  |
Senior Notes due 2024 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Maturity Date |  |  |  |  | Jun. 15, 2024 |  |
Long-term debt |  |  |  |  | $ 350,000 | 350,000 |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  | 5.375% |  |
Deferred Finance Costs, Gross |  |  |  |  | $ 6,000 |  |
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed |  |  |  |  | 101.00% |  |
Debt Instrument, Face Amount |  |  |  |  | $ 350,000 |  |
Secured Debt [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Issuance Date |  |  |  |  | Dec. 12, 2012 |  |
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum |  |  |  |  | On November 19, 2013, the Borrowers and WESCO International entered into an amendment (the “Term Loan Amendment”) to the Term Loan Agreement. The Term Loan Amendment, among other things, reduced the applicable margin on U.S. term loans by 0.50% and the LIBOR floor applicable to the U.S. sub-facility from 1.00% to 0.75%. The modified pricing terms were effective December 13, 2013. |  |
Debt Instrument, Unused Borrowing Capacity, Amount |  |  |  |  | $ 300,000 |  |
Debt Instrument, Decrease, Repayments |  |  |  |  | 500,000 |  |
Long-term debt |  |  |  |  | $ 0 | 24,594 |
Accounts Receivable Securitization Facility [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Amendment Description |  |  |  |  | On September 26, 2019, WESCO Distribution amended its accounts receivable securitization facility (the “Receivables Facility”) pursuant to the terms and conditions of a Ninth Amendment to the Fourth Amended and Restated Receivables Purchase Agreement, dated as of September 26, 2019 (the “Receivables Amendment”), by and among WESCO Receivables Corp. (“WESCO Receivables”), WESCO Distribution, the various purchaser groups from time to time party thereto and PNC Bank, National Association, as Administrator. The Receivables Amendment amended the amended and restated receivables purchase agreement entered into on September 24, 2015 (the “Existing Receivables Purchase Agreement” and as amended by the Receivables Amendment, the “Receivables Purchase Agreement”). |  |
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate |  |  |  |  | 2.00% |  |
Accounts Receivable Eligible for Securitization |  |  |  |  | $ 809,500 | 758,300 |
Long-term debt |  |  |  |  | $ 415,000 | 275,000 |
Revolving credit facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of Credit Facility, Borrowing Capacity, Description |  |  |  |  | On September 26, 2019, WESCO International, WESCO Distribution and certain other subsidiaries of the Company entered into a $600 million revolving credit facility (the “Revolving Credit Facility”) as a replacement of its existing revolving credit facility entered into on September 24, 2015. The Revolving Credit Facility contains a letter of credit sub-facility of up to $125 million, pursuant to the terms and conditions of a Third Amended and Restated Credit Agreement, dated as of September 26, 2019 (the “Credit Agreement”). The Revolving Credit Facility contains an accordion feature allowing WESCO Distribution to request increases to the borrowing commitments under the Revolving Credit Facility of up to $200 million in the aggregate, subject to customary conditions. |  |
Debt Instrument, Maturity Date |  |  |  |  | Sep. 01, 2024 |  |
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate |  |  |  |  | 1.60% |  |
Debt Instrument, Increase, Additional Borrowings |  |  |  |  | $ 715,400 | 473,100 |
Debt Instrument, Decrease, Repayments |  |  |  |  | 767,400 | 433,500 |
Long-term debt |  |  |  |  | 0 | 51,598 |
Line of Credit Facility, Remaining Borrowing Capacity |  |  |  |  | $ 563,800 | 515,900 |
Canada | Secured Debt [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Interest Rate at Period End |  |  |  |  | 2.00% |  |
Debt Instrument, Face Amount |  |  |  |  | $ 150,000 |  |
United States | Secured Debt [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Interest Rate at Period End |  |  |  |  | 1.00% |  |
Debt Instrument, Face Amount |  |  |  |  | $ 700,000 |  |
Minimum | Foreign Line of Credit [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of Credit Facility, Current Borrowing Capacity |  |  |  |  | $ 2,000 |  |
Minimum | Accounts Receivable Securitization Facility [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 0.95% |  |
Debt Instrument, Unused Borrowing Capacity, Amount |  |  |  |  | $ 550,000 |  |
Maximum | Foreign Line of Credit [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of Credit Facility, Current Borrowing Capacity |  |  |  |  | $ 21,000 |  |
Maximum | Accounts Receivable Securitization Facility [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 0.45% |  |
Debt Instrument, Unused Borrowing Capacity, Amount |  |  |  |  | $ 600,000 |  |
Accordion Feature [Member] | Accounts Receivable Securitization Facility [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Unused Borrowing Capacity, Amount |  |  |  |  | 200,000 |  |
Standby Letters of Credit [Member] | Revolving credit facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  |  |  | $ 27,200 | $ 28,400 |
Common Stock |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share |  |  |  |  | $ 0.01 | $ 0.01 |
London Interbank Offered Rate (LIBOR) [Member] | Minimum | Revolving credit facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 1.25% |  |
London Interbank Offered Rate (LIBOR) [Member] | Maximum | Revolving credit facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 1.50% |  |
Prime Rate [Member] | Minimum | Revolving credit facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 0.25% |  |
Prime Rate [Member] | Maximum | Revolving credit facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 0.50% |  |
Forecast [Member] | Senior Notes [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed |  |  |  |  |  |  | 100.00%
Forecast [Member] | Senior Notes due 2024 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed | 100.00% | 101.344% | 102.688% | 104.031% |  |  |
Surety Bond [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  |  |  | $ 36,100 | $ 19,500 |
Property Lease Guarantee [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  |  |  | $ 7,800 | $ 5,300 |

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