Basis of Presentation & Description of Business (Policies)	9 Months Ended
Oct. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation - Consolidation	The accompanying unaudited condensed consolidated financial statements present the results of operations, financial position and cash flows of Core & Main and its subsidiaries, which includes the consolidated financial statements of Holdings and its consolidated subsidiary, Core & Main LP, as the legal entity that conducts the operations of the Company. Holdings is considered a variable interest entity. Core & Main is the primary beneficiary and general partner of Holdings and has decision making authority that significantly affects the economic performance of the entity. As a result, Core & Main consolidates the consolidated financial statements of Holdings. All intercompany balances and transactions have been eliminated in consolidation. The Company records non-controlling interests related to Partnership Interest held by the Continuing Limited Partners in Holdings. For the periods prior to the Reorganization Transactions, the condensed consolidated financial statements of the Company include the Blocker Companies, which were merged into Core & Main as part of the Blocker Mergers.
Basis of Presentation - Accounting	In management’s opinion, the unaudited condensed consolidated financial information for the interim periods presented include all normal recurring adjustments necessary for a fair statement of the Company's results of operations, financial position and cash flows, which include all disclosures required by accounting principles generally accepted in the United States of America (“U.S. GAAP”). Revenues, expenses, assets and liabilities can vary during each quarter of the year. Therefore, the results and trends in these interim unaudited condensed consolidated financial statements may not be the same as those for the full year. The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the Holdings audited consolidated financial statements and the related notes thereto as of and for the fiscal year ended January 31, 2021 included in the prospectus (File No. 333-256382), dated July 22, 2021, filed with the Securities and Exchange Commission (the “SEC”) pursuant to Rule 424(b) under the Securities Act of 1933, as amended, on July 26, 2021 (the “Prospectus”).
Segments	Segments The Company’s chief operating decision maker (“CODM”) manages the business as a single operating and reportable segment. The Company operates approximately 300 branch locations across the U.S. The nature of the products and services, vendors, customers and distribution methods are similar across branches. Accordingly, the CODM evaluates the performance of the business and makes management decisions on a consolidated basis. Performance is most notably measured based on Adjusted EBITDA at the consolidated level. The consolidated performance of the Company is utilized to determine incentive compensation for executive officers, annual merit decisions, management of national vendor relationships, allocation of resources and in evaluating acquisitions and the Company's capital structure.
Fiscal Year	Fiscal Year The Company’s fiscal year is a 52- or 53-week period ending on the Sunday nearest to January 31st. Quarters within the fiscal year include 13-week periods, unless a fiscal year includes a 53rd week, in which case the fourth quarter of the fiscal year will be a 14-week period. Both the three months ended October 31, 2021 and three months ended November 1, 2020 included 13 weeks, and both the nine months ended October 31, 2021 and nine months ended November 1, 2020 included 39 weeks. The current fiscal year ending January 30, 2022 (“fiscal 2021”) will include 52 weeks.
Estimates	Estimates Management has made a number of estimates and assumptions relating to the reporting of certain assets and liabilities, the disclosure of contingent assets and liabilities, and reported amounts of revenues and expenses in preparing the elements of these financial statements in conformity with U.S. GAAP. Actual results could differ from these estimates.
Income Taxes and Tax Receivable Agreements	Income Taxes As a result of the Reorganization Transactions, Core & Main became the general partner of Holdings, which is treated as a partnership for U.S. federal and most applicable state and local income tax purposes. As a partnership, Holdings is generally not subject to U.S. federal and certain state and local income taxes. Any taxable income or loss from Holdings is passed through to and included in the taxable income or loss of its partners, including Core & Main, following the Reorganization Transactions. Core & Main is subject to U.S. federal income taxes, in addition to state and local income taxes, with respect to Core & Main’s allocable share of any taxable income or loss of Holdings following the Reorganization Transactions. Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for future tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities from a change in tax rates is recognized in income in the period that includes the enactment date. The Company recognizes deferred tax assets to the extent that it believes that these assets are more likely than not to be realized. In making such a determination, the Company considers all available positive and negative evidence, including future reversals of existing taxable temporary differences, projected future taxable income, tax-planning strategies and results of recent operations. If it is determined that the Company is not able to realize deferred tax assets in the future, a valuation allowance would be established, which would impact the provision for income taxes. Uncertain tax positions are recorded on the basis of a two-step process in which (1) it is determined if a tax position is more-likely-than-not of being sustained on the technical merits of the position and (2) for those tax positions that meet the more-likely-than-not recognition threshold, the Company recognizes the largest amount of tax benefit that is more than 50% likely to be realized upon ultimate settlement with the related tax authority. The Company records interest and penalties related to uncertain tax positions in the provision for income taxes in the unaudited Condensed Consolidated Statements of Operations. The tax provision for interim periods is determined using an estimate of the Company's annual effective tax rate, adjusted for discrete items, if any, that arise during the period. Each quarter, the Company updates its estimate of its annual effective tax rate, and if the estimated annual effective tax rate changes, the Company makes a cumulative adjustment in such period. The quarterly tax provision, and estimate of the Company's annual effective tax rate, are subject to variation due to several factors, including variability in pre-tax income (or loss), the mix of jurisdictions to which such income relates, changes in how the Company conducts business, and tax law developments. Tax Receivable Agreements In connection with the Reorganization Transactions and the IPO, Core & Main entered into a tax receivable agreement with the Former Limited Partners (the “Former Limited Partners Tax Receivable Agreement”) and a tax receivable agreement with the Continuing Limited Partners (the “Continuing Limited Partners Tax Receivable Agreement”) (collectively, the “Tax Receivable Agreements”). Under these agreements, Core & Main expects to generate tax attributes that will reduce amounts that it would otherwise pay in the future to various tax authorities. The Former Limited Partners Tax Receivable Agreement provides for the payment by Core & Main to certain Former Limited Partners, or their permitted transferees, of 85% of the tax benefits, if any, that Core & Main actually realizes, or in some circumstances is deemed to realize, as a result of (i) certain tax attributes of the Partnership Interests Core & Main holds in respect of such Former Limited Partners’ interest in Core & Main, including such attributes which resulted from such Former Limited Partners’ prior acquisition of ownership interests in Holdings and Core & Main's allocable share of existing tax basis acquired in connection with the IPO attributable to the Former Limited Partners and (ii) certain other tax benefits. The Continuing Limited Partners Tax Receivable Agreement provides for the payment by Core & Main to the Continuing Limited Partners, or their permitted transferees, of 85% of the benefits, if any, that Core & Main realizes, or in some circumstances is deemed to realize, as a result of (i) increases in tax basis or other similar tax benefits as a result of exchanges of Partnership Interests for cash or shares of Class A common stock pursuant to the Exchange Agreement, dated as of July 22, 2021 (the “Exchange Agreement”), by and among Core & Main, Holdings, CD&R Waterworks Holdings and Management Feeder, (ii) Core & Main’s allocable share of existing tax basis acquired in connection with the IPO attributable to the Continuing Limited Partners and in connection with exchanges of Partnership Interests for cash or shares of Class A common stock pursuant to the Exchange Agreement and (iii) Core & Main’s utilization of certain other tax benefits related to Core & Main's entering into the Continuing Limited Partners Tax Receivable Agreement, including tax benefits attributable to payments under the Continuing Limited Partners Tax Receivable Agreement. Core & Main expects to obtain an increase in its share of the tax basis in the net assets of Holdings as Partnership Interests are exchanged by Continuing Limited Partners. Core & Main intends to treat any exchanges of Partnership Interests as direct purchases of Partnership Interests for U.S. federal income tax purposes. These increases in tax basis may reduce the amounts that it would otherwise pay in the future to various tax authorities. Core & Main will receive the full benefit in tax savings from relevant taxing authorities and provide payment of 85% of the amount of any tax benefits Core & Main actually realizes to the Former Limited Partners or the Continuing Limited Partners, as applicable, or their permitted transferees. Core & Main expects to benefit from the remaining 15% of any cash tax savings that it realizes. For the Tax Receivable Agreements, Core & Main will assess the tax attributes to determine if it is more likely than not that the benefit of any deferred tax assets will be realized. Following that assessment, Core & Main will recognize a liability under the applicable Tax Receivable Agreements, reflecting approximately 85% of the expected future realization of such tax benefits. Amounts payable under the Tax Receivable Agreements are contingent upon, among other things, (i) generation of sufficient future taxable income during the term of the applicable Tax Receivable Agreements and (ii) future changes in tax laws.
Equity-Based Compensation	Equity-Based Compensation The Company recognizes the cost of employee services received in exchange for awards of equity instruments based on the grant date fair value of those awards. That cost is recognized over the requisite service period (generally the vesting period), which is the period during which an employee is required to provide service in exchange for the award. In connection with the Reorganization Transactions, which included the recapitalization of Management Feeder and entry into the Exchange Agreement, the equity awards issued by Holdings and held by Management Feeder were deemed to be modified for accounting purposes. The Company calculated the incremental fair value associated with the modification and will recognize this incremental fair value immediately for each vested award with no remaining service period and over the remaining service period associated with each unvested award. The incremental fair value associated with previously vested awards was expensed immediately as there was no remaining service period.
Basic and Diluted Earnings per Share	Basic and Diluted Earnings per Share Basic earnings per share is computed by dividing net income attributable to Core & Main for the period following the Reorganization Transactions by the weighted average number of shares of Class A common stock outstanding during the same period. Shares of Class A common stock issued during that period, including shares of Class A common stock issued in the IPO and the IPO Overallotment Option Exercise, were weighted for the portion of that period in which the shares of Class A common stock were outstanding. The Company did not apply the two-class method because shares of Class B common stock do not participate in earnings or losses of Core & Main. As a result, no earnings per share of Class B common stock were presented. Net income allocated to holders of non-controlling interests was excluded from net income available to the Class A common stock. There were no preferred dividends and no shares of preferred stock outstanding for the period. The diluted net earnings per share calculation includes the basic weighted average number of shares of Class A common stock outstanding plus the dilutive impact of potential outstanding shares of Class A common stock that would be issued upon exchange of Partnership Interests together with the retirement of a corresponding number of shares of Class B common stock, under the if-converted method, if dilutive. The treasury stock method is applied to outstanding awards, including unvested Partnership Interests and outstanding stock appreciation rights.
Non-controlling Interests	Non-controlling Interests The non-controlling interests represent the Partnership Interests of Holdings held by the Continuing Limited Partners. Income or loss is attributed to the non-controlling interests based on the weighted average percentage of Partnership Interests held by Continuing Limited Partners, excluding unvested Partnership Interests held by Management Feeder, relative to all Partnership Interests of Holdings during the period following the Reorganization Transactions. Non-controlling interests presented in the consolidated Balance Sheets represents, the ownership percentage of Partnership Interests held by Continuing Limited Partners as of the balance sheet date multiplied by the equity of Holdings, prior to distributions, less distributions to non-controlling interest holders. The non-controlling interests’ ownership percentage may fluctuate over time as the Continuing Limited Partners exchange Partnership Interests, together with the retirement of a corresponding number of shares of Class B common stock, for shares of Class A common stock and Partnership Interests held by Management Feeder vest.
Recent Accounting Pronouncements	Cloud computing arrangements - In August 2018, the Financial Accounting Standards Board (the “FASB”) issued ASU No. 2018-15, “Intangibles—Goodwill and Other—Internal-Use Software: Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract” (“ASU 2018-15”). The new guidance aligns the requirements for capitalizing implementation costs in a cloud computing arrangement service contract with the requirements for capitalizing implementation costs incurred for an internal-use software license. ASU 2018-15 is effective for annual periods beginning after December 15, 2019, and interim periods within these annual periods. The standard permits two approaches, one requiring prospective application to eligible costs incurred on or after the date this guidance is first applied and one requiring retrospective application. The Company adopted the provisions of ASU 2018-15 during the first quarter of the fiscal year ended January 31, 2021 (“fiscal 2020”) using the prospective method. The adoption of ASU 2018-15 did not have a material impact on the Company's financial position, results of operations or cash flows. The Company made no adjustments to its financial position upon adoption. Measurement of Credit Losses - In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments-Credit Losses: Measurement of Credit Losses on Financial Instruments” (“ASU 2016-13”). The new guidance introduces a new accounting model for recognizing expected credit losses upon the initial recognition of certain financial instruments, including accounts receivable, based on historical information, current information, and forecasted future events. ASU 2016-13 is effective for annual periods beginning after December 15, 2019, and interim periods within these annual periods. The Company adopted the provisions of ASU 2016-13 during the first quarter of fiscal 2020, using the modified retrospective approach. The adoption of ASU 2016-13 did not result in a material impact to the Company's financial position, results of operations or cash flows upon adoption. Accounting for Income Taxes - In December 2019, the FASB issued ASU 2019-12, “Simplifying the Accounting for Income Taxes” (“ASU 2019-12”). The amendments in ASU 2019-12 simplify the accounting for income taxes by removing certain exceptions related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period, and the recognition of deferred tax liabilities for outside tax basis. The transition requirements are dependent upon each amendment within ASU 2019-12 and will be applied either prospectively or retrospectively. The Company adopted the provisions of ASU 2019-12, during the first quarter of fiscal 2021. The adoption of ASU 2019-12 did not result in a material impact to the Company’s financial position, results of operations or cash flows upon adoption. Not Yet Adopted Reference Rate Reform - In March 2020, the FASB issued ASU No. 2020-04, “Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting” (“ASU 2020-04”). The new guidance provides optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships and other transactions affected by reference rate reform if certain criteria are met. The amendments apply only to contracts and hedging relationships that reference the London Interbank Offered Rate (“LIBOR”) or another reference rate expected to be discontinued because of reference rate reform. The expedients and exceptions provided by ASU 2020-04 are effective for prospective contract modifications made and qualifying hedging relationships entered into as of March 12, 2020 through December 31, 2022. As discussed in Note 6, the debt modification performed by the Company on July 27, 2021 did not qualify under the guidance of ASU 2020-04 as the debt and interest rate swap instruments continue to reference LIBOR. At the time of a qualifying transaction and/or modification of debt and interest rate swap instruments to replace LIBOR with a new interest rate index, the Company will consider the application of ASU 2020-04.

Basis of Presentation & Description of Business (Policies)

9 Months Ended

Oct. 31, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

The accompanying unaudited condensed consolidated financial statements present the results of operations, financial position and cash flows of Core & Main and its subsidiaries, which includes the consolidated financial statements of Holdings and its consolidated subsidiary, Core & Main LP, as the legal entity that conducts the operations of the Company. Holdings is considered a variable interest entity. Core & Main is the primary beneficiary and general partner of Holdings and has decision making authority that significantly affects the economic performance of the entity. As a result, Core & Main consolidates the consolidated financial statements of Holdings. All intercompany balances and transactions have been eliminated in consolidation. The Company records non-controlling interests related to Partnership Interest held by the Continuing Limited Partners in Holdings.

For the periods prior to the Reorganization Transactions, the condensed consolidated financial statements of the Company include the Blocker Companies, which were merged into Core & Main as part of the Blocker Mergers.

Basis of Presentation - Accounting

In management’s opinion, the unaudited condensed consolidated financial information for the interim periods presented include all normal recurring adjustments necessary for a fair statement of the Company's results of operations, financial position and cash flows, which include all disclosures required by accounting principles generally accepted in the United States of America (“U.S. GAAP”). Revenues, expenses, assets and liabilities can vary during each quarter of the year. Therefore, the results and trends in these interim unaudited condensed consolidated financial statements may not be the same as those for the full year. The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the Holdings audited consolidated financial statements and the related notes thereto as of and for the fiscal year ended January 31, 2021 included in the prospectus (File No. 333-256382), dated July 22, 2021, filed with the Securities and Exchange Commission (the “SEC”) pursuant to Rule 424(b) under the Securities Act of 1933, as amended, on July 26, 2021 (the “Prospectus”).

Segments

The Company’s chief operating decision maker (“CODM”) manages the business as a single operating and reportable segment. The Company operates approximately 300 branch locations across the U.S. The nature of the products and services, vendors, customers and distribution methods are similar across branches. Accordingly, the CODM evaluates the performance of the business and makes management decisions on a consolidated basis. Performance is most notably measured based on Adjusted EBITDA at the consolidated level. The consolidated performance of the Company is utilized to determine incentive compensation for executive officers, annual merit decisions, management of national vendor relationships, allocation of resources and in evaluating acquisitions and the Company's capital structure.

Fiscal Year

Fiscal Year The Company’s fiscal year is a 52- or 53-week period ending on the Sunday nearest to January 31st. Quarters within the fiscal year include 13-week periods, unless a fiscal year includes a 53rd week, in which case the fourth quarter of the fiscal year will be a 14-week period. Both the three months ended October 31, 2021 and three months ended November 1, 2020 included 13 weeks, and both the nine months ended October 31, 2021 and nine months ended November 1, 2020 included 39 weeks. The current fiscal year ending January 30, 2022 (“fiscal 2021”) will include 52 weeks.

Estimates

Estimates Management has made a number of estimates and assumptions relating to the reporting of certain assets and liabilities, the disclosure of contingent assets and liabilities, and reported amounts of revenues and expenses in preparing the elements of these financial statements in conformity with U.S. GAAP. Actual results could differ from these estimates.

Income Taxes and Tax Receivable Agreements

Income Taxes

As a result of the Reorganization Transactions, Core & Main became the general partner of Holdings, which is treated as a partnership for U.S. federal and most applicable state and local income tax purposes. As a partnership, Holdings is generally not subject to U.S. federal and certain state and local income taxes. Any taxable income or loss from Holdings is passed through to and included in the taxable income or loss of its partners, including Core & Main, following the Reorganization Transactions. Core & Main is subject to U.S. federal income taxes, in addition to state and local income taxes, with respect to Core & Main’s allocable share of any taxable income or loss of Holdings following the Reorganization Transactions.

Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for future tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities from a change in tax rates is recognized in income in the period that includes the enactment date.

The Company recognizes deferred tax assets to the extent that it believes that these assets are more likely than not to be realized. In making such a determination, the Company considers all available positive and negative evidence, including future reversals of existing taxable temporary differences, projected future taxable income, tax-planning strategies and results of recent operations. If it is determined that the Company is not able to realize deferred tax assets in the future, a valuation allowance would be established, which would impact the provision for income taxes.

Uncertain tax positions are recorded on the basis of a two-step process in which (1) it is determined if a tax position is more-likely-than-not of being sustained on the technical merits of the position and (2) for those tax positions that meet the more-likely-than-not recognition threshold, the Company recognizes the largest amount of tax benefit that is more than 50% likely to be realized upon ultimate settlement with the related tax authority. The Company records interest and penalties related to uncertain tax positions in the provision for income taxes in the unaudited Condensed Consolidated Statements of Operations.

The tax provision for interim periods is determined using an estimate of the Company's annual effective tax rate, adjusted for discrete items, if any, that arise during the period. Each quarter, the Company updates its estimate of its annual effective tax rate, and if the estimated annual effective tax rate changes, the Company makes a cumulative adjustment in such period. The quarterly tax provision, and estimate of the Company's annual effective tax rate, are subject to variation due to several factors, including variability in pre-tax income (or loss), the mix of jurisdictions to which such income relates, changes in how the Company conducts business, and tax law developments.

Tax Receivable Agreements

In connection with the Reorganization Transactions and the IPO, Core & Main entered into a tax receivable agreement with the Former Limited Partners (the “Former Limited Partners Tax Receivable Agreement”) and a tax receivable agreement with the Continuing Limited Partners (the “Continuing Limited Partners Tax Receivable Agreement”) (collectively, the “Tax Receivable Agreements”). Under these agreements, Core & Main expects to generate tax attributes that will reduce amounts that it would otherwise pay in the future to various tax authorities.

The Former Limited Partners Tax Receivable Agreement provides for the payment by Core & Main to certain Former Limited Partners, or their permitted transferees, of 85% of the tax benefits, if any, that Core & Main actually realizes, or in some circumstances is deemed to realize, as a result of (i) certain tax attributes of the Partnership Interests Core & Main holds in respect of such Former Limited Partners’ interest in Core & Main, including such attributes which resulted from such Former Limited Partners’ prior acquisition of ownership interests in Holdings and Core & Main's allocable share of existing tax basis acquired in connection with the IPO attributable to the Former Limited Partners and (ii) certain other tax benefits.

The Continuing Limited Partners Tax Receivable Agreement provides for the payment by Core & Main to the Continuing Limited Partners, or their permitted transferees, of 85% of the benefits, if any, that Core & Main realizes, or in some circumstances is deemed to realize, as a result of (i) increases in tax basis or other similar tax benefits as a result of exchanges of Partnership Interests for cash or shares of Class A common stock pursuant to the Exchange Agreement, dated as of July 22, 2021 (the “Exchange Agreement”), by and among Core & Main, Holdings, CD&R Waterworks Holdings and Management Feeder, (ii) Core & Main’s allocable share of existing tax basis acquired in connection with the IPO attributable to the Continuing Limited Partners and in connection with exchanges of Partnership Interests for cash or shares of Class A common stock pursuant to the Exchange Agreement and (iii) Core & Main’s utilization of certain other tax benefits related to Core & Main's entering into the Continuing Limited Partners Tax Receivable Agreement, including tax benefits attributable to payments under the Continuing Limited Partners Tax Receivable Agreement. Core & Main expects to obtain an increase in its share of the tax basis in the net assets of Holdings as Partnership Interests are exchanged by Continuing Limited Partners. Core & Main intends to treat any exchanges of Partnership Interests as direct purchases of Partnership Interests for U.S. federal income tax purposes. These increases in tax basis may reduce the amounts that it would otherwise pay in the future to various tax authorities. Core & Main will receive the full benefit in tax savings from relevant taxing authorities and provide payment of 85% of the amount of any tax benefits Core & Main actually realizes to the Former Limited Partners or the Continuing Limited Partners, as applicable, or their permitted transferees. Core & Main expects to benefit from the remaining 15% of any cash tax savings that it realizes. For the Tax Receivable Agreements, Core & Main will assess the tax attributes to determine if it is more likely than not that the benefit of any deferred tax assets will be realized. Following that assessment, Core & Main will recognize a liability under the applicable Tax Receivable Agreements, reflecting approximately 85% of the expected future realization of such tax benefits. Amounts payable under the Tax Receivable Agreements are contingent upon, among other things, (i) generation of sufficient future taxable income during the term of the applicable Tax Receivable Agreements and (ii) future changes in tax laws.

Equity-Based Compensation

The Company recognizes the cost of employee services received in exchange for awards of equity instruments based on the grant date fair value of those awards. That cost is recognized over the requisite service period (generally the vesting period), which is the period during which an employee is required to provide service in exchange for the award.

In connection with the Reorganization Transactions, which included the recapitalization of Management Feeder and entry into the Exchange Agreement, the equity awards issued by Holdings and held by Management Feeder were deemed to be modified for accounting purposes. The Company calculated the incremental fair value associated with the modification and will recognize this incremental fair value immediately for each vested award with no remaining service period and over the remaining service period associated with each unvested award. The incremental fair value associated with previously vested awards was expensed immediately as there was no remaining service period.

Basic and Diluted Earnings per Share

Basic earnings per share is computed by dividing net income attributable to Core & Main for the period following the Reorganization Transactions by the weighted average number of shares of Class A common stock outstanding during the same period. Shares of Class A common stock issued during that period, including shares of Class A common stock issued in the IPO and the IPO Overallotment Option Exercise, were weighted for the portion of that period in which the shares of Class A common stock were outstanding. The Company did not apply the two-class method because shares of Class B common stock do not participate in earnings or losses of Core & Main. As a result, no earnings per share of Class B common stock were presented. Net income allocated to holders of non-controlling interests was excluded from net income available to the Class A common stock. There were no preferred dividends and no shares of preferred stock outstanding for the period.

The diluted net earnings per share calculation includes the basic weighted average number of shares of Class A common stock outstanding plus the dilutive impact of potential outstanding shares of Class A common stock that would be issued upon exchange of Partnership Interests together with the retirement of a corresponding number of shares of Class B common stock, under the if-converted method, if dilutive. The treasury stock method is applied to outstanding awards, including unvested Partnership Interests and outstanding stock appreciation rights.

Non-controlling Interests

The non-controlling interests represent the Partnership Interests of Holdings held by the Continuing Limited Partners. Income or loss is attributed to the non-controlling interests based on the weighted average percentage of Partnership Interests held by Continuing Limited Partners, excluding unvested Partnership Interests held by Management Feeder, relative to all Partnership Interests of Holdings during the period following the Reorganization Transactions. Non-controlling interests presented in the consolidated Balance Sheets represents, the ownership percentage of Partnership Interests held by Continuing Limited Partners as of the balance sheet date multiplied by the equity of Holdings, prior to distributions, less distributions to non-controlling interest holders. The non-controlling interests’ ownership percentage may fluctuate over time as the Continuing Limited Partners exchange Partnership Interests, together with the retirement of a corresponding number of shares of Class B common stock, for shares of Class A common stock and Partnership Interests held by Management Feeder vest.

Recent Accounting Pronouncements

Cloud computing arrangements - In August 2018, the Financial Accounting Standards Board (the “FASB”) issued ASU No. 2018-15, “Intangibles—Goodwill and Other—Internal-Use Software: Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract” (“ASU 2018-15”). The new guidance aligns the requirements for capitalizing implementation costs in a cloud computing arrangement service contract with the requirements for capitalizing implementation costs incurred for an internal-use software license. ASU 2018-15 is effective for annual periods beginning after December 15, 2019, and interim periods within these annual periods. The standard permits two approaches, one requiring prospective application to eligible costs incurred on or after the date this guidance is first applied and one requiring retrospective application.

The Company adopted the provisions of ASU 2018-15 during the first quarter of the fiscal year ended January 31, 2021 (“fiscal 2020”) using the prospective method. The adoption of ASU 2018-15 did not have a material impact on the Company's financial position, results of operations or cash flows. The Company made no adjustments to its financial position upon adoption.

Measurement of Credit Losses - In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments-Credit Losses: Measurement of Credit Losses on Financial Instruments” (“ASU 2016-13”). The new guidance introduces a new accounting model for recognizing expected credit losses upon the initial recognition of certain financial instruments, including accounts receivable, based on historical information, current information, and forecasted future events. ASU 2016-13 is effective for annual periods beginning after December 15, 2019, and interim periods within these annual periods.

The Company adopted the provisions of ASU 2016-13 during the first quarter of fiscal 2020, using the modified retrospective approach. The adoption of ASU 2016-13 did not result in a material impact to the Company's financial position, results of operations or cash flows upon adoption.

Accounting for Income Taxes - In December 2019, the FASB issued ASU 2019-12, “Simplifying the Accounting for Income Taxes” (“ASU 2019-12”). The amendments in ASU 2019-12 simplify the accounting for income taxes by removing certain exceptions related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period, and the recognition of deferred tax liabilities for outside tax basis. The transition requirements are dependent upon each amendment within ASU 2019-12 and will be applied either prospectively or retrospectively. The Company adopted the provisions of ASU 2019-12, during the first quarter of fiscal 2021. The adoption of ASU 2019-12 did not result in a material impact to the Company’s financial position, results of operations or cash flows upon adoption.

Not Yet Adopted

Reference Rate Reform - In March 2020, the FASB issued ASU No. 2020-04, “Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting” (“ASU 2020-04”). The new guidance provides optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships and other transactions affected by reference rate reform if certain criteria are met. The amendments apply only to contracts and hedging relationships that reference the London Interbank Offered Rate (“LIBOR”) or another reference rate expected to be discontinued because of reference rate reform. The expedients and exceptions provided by ASU 2020-04 are effective for prospective contract modifications made and qualifying hedging relationships entered into as of March 12, 2020 through December 31, 2022. As discussed in Note 6, the debt modification performed by the Company on July 27, 2021 did not qualify under the guidance of ASU 2020-04 as the debt and interest rate swap instruments continue to reference LIBOR. At the time of a qualifying transaction and/or modification of debt and interest rate swap instruments to replace LIBOR with a new interest rate index, the Company will consider the application of ASU 2020-04.