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SCHEDULE OF PRO FORMA INFORMATION (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Anixter International |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Pro forma net sales | $ 3,678,504 | $ 4,384,752 | $ 7,691,263 | $ 8,425,934
Pro forma net income attributable to common stockholders | 29,421 | $ 71,180 | 47,410 | $ 97,898
Business Combination, Acquisition Related Costs | $ 73,300 |  | $ 78,000 |
Anixter International acquisition [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Acquisition, Pro Forma Information, Description |  |  | The following unaudited pro forma financial information presents combined results of operations for the periods presented, as if the Company had completed the Merger on January 1, 2019. The unaudited pro forma financial information includes adjustments to amortization and depreciation for intangible assets and property, buildings and equipment, adjustments to interest expense for the additional indebtedness incurred to complete the acquisition (including the amortization of debt discount and issuance costs), transaction costs, change in control and severance costs, dividends accrued on the Series A preferred stock, compensation expense associated with the WESCO phantom stock unit awards described in Note 10, as well as the respective income tax effects of such adjustments. The unaudited pro forma net income attributable to common stockholders presented below includes adjustments totaling $58.4 million and $55.8 million for the three months ended June 30, 2020 and 2019, respectively, and $6.3 million and $110.5 million for the six months ended June 30, 2020 and 2019, respectively. The unaudited pro forma financial information does not reflect any cost savings, operating synergies or revenue enhancements that WESCO may achieve as a result of its acquisition of Anixter, the costs to integrate the operations of WESCO and Anixter or the costs necessary to achieve these cost savings, operating synergies and revenue enhancements. The unaudited pro forma financial information presented below is not necessarily indicative of consolidated results of operations of the combined business had the acquisition occurred at the beginning of the respective fiscal years, nor is it necessarily indicative of future results of operations of the combined company. |

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