Document and Entity Information [Abstract] Document Information [Table] Legal Entity [Axis] Entity [Domain] Represents the Retirement Plan Number 002. E B P 002 [Member] SiteOne Savings and Investment Plan Document Information [Line Items] Document and Entity Information Document Type Entity Registrant Name Entity Central Index Key Amendment Flag Statements of Net Assets Available for Benefits EBP, Statement of Net Asset Available for Benefit [Table] EBP, Statement of Net Asset Available for Benefit [Line Items] Statements of Net Assets Available for Benefits EBP, Asset [Abstract] Assets EBP, Noninterest-Bearing Cash Non-interest bearing cash EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value Investments, at fair value (Note 3) Total investments, at fair value EBP, Receivable [Abstract] Receivables: EBP, Employer Contribution, Receivable Employer contributions EBP, Note Receivable from Participant Notes receivable from participants EBP, Receivable Total receivables EBP, Net Asset Available for Benefit End of year Beginning of year Net assets available for benefits Statement of Changes in Net Assets Available for Benefits EBP, Statement of Change in Net Asset Available for Benefit [Table] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] Statement of Changes in Net Assets Available for Benefits EBP, Change in Net Asset Available for Benefit, Increase [Abstract] Additions to net assets attributable to: EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment [Abstract] Investment income: EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment Interest and dividend income EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Unrealized Gain (Loss) on Investment Net appreciation in fair value of investments EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment Total investment income EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant Interest income on notes receivable from participants EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract] Contributions: EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover Participant contributions EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash Employer contributions, net of forfeitures EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Rollover Participant rollovers EBP, Change in Net Asset Available for Benefit, Increase from Contribution Total contributions EBP, Change in Net Asset Available for Benefit, Decrease [Abstract] Deductions: EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant Benefits paid to participants and beneficiaries EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense Administrative expenses EBP, Change in Net Asset Available for Benefit, Decrease Total deductions EBP, Change in Net Asset Available for Benefit, Increase (Decrease) Net increase EBP, Change in Net Asset Available for Benefit, Increase (Decrease) [Abstract] Net assets available for benefits: Description of Plan EBP, Description of Plan [Table] EBP, Description of Plan [Line Items] Description of Plan Plan Termination EBP, Description of Plan [Text Block] Description of Plan Summary of Significant Accounting Policies EBP, Accounting Policy [Table] EBP, Accounting Policy [Line Items] Summary of Significant Accounting Policies EBP, Summary of Accounting Policy [Text Block] Summary of Significant Accounting Policies Fair Value Measurements EBP, Investment, Fair Value and NAV [Table] EBP, Investment, Fair Value and NAV [Line Items] Fair Value Measurements Investments that Trade at Net Asset Value as a Practical Expedient EBP, Investment, Fair Value and NAV [Text Block] Fair Value Measurements Investments that Trade at Net Asset Value as a Practical Expedient The entire disclosure for fair value of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) measured at net asset value per share as practical expedient (NAV). Employee Benefit Plan, Investment, Nav [Text Block] Investments that Trade at Net Asset Value as a Practical Expedient No definition available. Plan Termination EBP, Plan Termination [Text Block] Plan Termination Income Tax Status EBP, Tax Status [Table] EBP, Tax Status [Line Items] Income Tax Status EBP, Tax Status [Text Block] Income Tax Status Risks and Uncertainties EBP, Risk and Uncertainty [Table] EBP, Risk and Uncertainty [Line Items] Risks and Uncertainties EBP, Risk and Uncertainty [Text Block] Risks and Uncertainties Related Party Transactions and Party-in-Interest Transactions EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Related Party and Party-in-Interest Transactions [Line Items] Related Party Transactions and Party-in-Interest Transactions EBP, Related Party and Party-in-Interest Transactions [Text Block] Related Party Transactions and Party-in-Interest Transactions Schedule H, Part IV, Line 4i - Schedule of Assets (Held at End of Year) EBP, Schedule of Asset Held for Investment [Table] EBP, Schedule of Asset Held for Investment [Line Items] Schedule H, Part IV, Line 4i - Schedule of Assets (Held at End of Year) EBP, Schedule of Asset Held for Investment [Text Block] Schedule H, Part IV, Line 4i - Schedule of Assets (Held at End of Year) EBP, Basis of Accounting [Policy Text Block] Basis of Accounting EBP, Use of Estimate [Policy Text Block] Use of Estimates EBP, Investment [Policy Text Block] Investment Valuation and Income Recognition EBP, Note Receivable from Participant [Policy Text Block] Notes Receivable from Participants EBP, Payment to Participant [Policy Text Block] Payment of Benefits EBP, Expense [Policy Text Block] Expenses EBP, Investment, Fair Value and NAV [Table Text Block] Schedule of Plan's Assets Fair Value Hierarchy Tabular disclosure of fair value of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) measured at net asset value per share as practical expedient (NAV). Employee Benefit Plan, Investment, Nav [Table Text Block] Schedule of investments fair value estimated using net asset value as practical expedient Scenario [Axis] Scenario [Domain] Represents the first portion of salary deductions. First Portion of Salary Deductions [Member] First portion of salary deductions Represents the second portion of salary deductions. Second Portion of Salary Deductions [Member] Second portion of salary deductions Represents the minimum service period for plan eligibility under (employee benefit plan (EBP)). Employee Benefit Plan, Minimum Service Period For Plan Eligibility Minimum service period for Plan eligibility Percentage of minimum pretax annual compensation that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), is permitted to contribute to total pretax annual compensation. Employee Benefit Plan, Participant Contribution, Pretax, Minimum Annual Compensation to Total Compensation Percentage Minimum amount of compensation eligible for participant contribution (as a percent) Percentage of annual increase to the minimum pretax annual compensation that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), is permitted to contribute to total pretax annual compensation. Employee Benefit Plan, Participant Contribution, Pretax, Percentage Increase to Annual Compensation Annual increase in participant contribution (as a percent) EBP, Participant Contribution, Pretax, Maximum Annual Compensation to Total Compensation, Percentage Maximum amount of compensation eligible for participant contribution (as a percent) EBP, Employer Contribution, Matching Percentage Employer matching contribution (as a percent) EBP, Employer Contribution, Participant Compensation Matched, Percentage Participant compensation matched (as a percent) Represents the vested percentage based on years of vesting services. Employee Benefit Plan, Vesting Percentage Vesting percentage Represents the duration of service required for a participant to become fully vested in employer contributions under the plan. Employee Benefit Plan, Vesting Period Vesting period Statistical Measurement [Axis] Statistical Measurement [Domain] Minimum [Member] Minimum Maximum [Member] Maximum EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount Note receivable, minimum borrowing amount EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount Note receivable, maximum borrowing amount EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage Note receivable, maximum borrowing percentage EBP, Asset Held for Investment, Participant Loan, Interest Rate Loan interest rate Represents the participant age requirement for in-service withdrawal from account balance of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Employee Benefit Plan, Participant Age for In-Service Withdrawal Participant age for in-service withdrawal from account balance EBP, Forfeited Nonvested Account Forfeited non-vested accounts EBP, Forfeited Nonvested Account, Decrease from Employer Contribution Amount of forfeited nonvested accounts used to offset employer contributions EBP, Forfeited Nonvested Account, Decrease from Administrative Expense Amount of forfeited nonvested accounts used to pay administrative expenses Represents the percentage of limitation on investments in shares of employer entity in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Employee Benefit Plan, Percentage of Limitation on Investments in Shares of Employer Entity Percentage of limitation on investments in shares of employer entity Amount of decrease in net asset available for benefit from deemed distributions by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Employee Benefit Plan, Change in Net Asset Available for Benefit, Decrease from Deemed Distributions Deemed distribution Investment Type [Axis] Investments [Domain] Mutual Fund [Member] Mutual funds EBP, Employer, Common Stock Fund [Member] Company common stock Money Market Funds [Member] Money market fund EBP, Self-Directed Brokerage Account [Member] Self-directed brokerage accounts Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] Fair value hierarchy Fair Value, Inputs, Level 1 [Member] Level 1 Fair Value Measured at Net Asset Value Per Share [Member] Net asset value Common Collective Trust [Member] Collective investment trust fund Collective investment trust funds Represents information pertaining to common collective trust, target date fund. Common Collective Trust, Target Date Funds [Member] Collective investment trust fund - target date funds Represents information pertaining to common collective trust, stable value fund. Common Collective Trust, Stable Value Funds [Member] Collective investment trust fund - stable value EBP, Fair Value, Investment, NAV, Redemption Restriction, Period in Effect Other Redemption Restricted Period EBP, Fair Value, Investment, NAV, Redemption, Notice Period Redemption Notice Period EBP, Tax Determination Letter, Obtained [true false] Determination letter obtained EBP, Tax Determination Letter, Date Determination letter date EBP, Tax Qualification Status [Extensible Enumeration] Tax qualification status EBP, Investment, Number of Shares Number of shares held EBP, Change in Net Asset Available for Benefit, Increase from Dividend Income on Investment Dividends declared Investment, Identifier [Axis] EBP, Plan Number Plan number Entity Tax Identification Number EIN EBP, Investment, Issuer Name [Extensible Enumeration] EBP, Investment, Current Value, Type [Extensible Enumeration] EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value Current Value EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution Notes receivable from participants, Current Value EBP, Form 5500 Caption, Net Assets Total investments per Form 5500, Current Value EBP, Asset Held for Investment, Party-in-Interest [true false] Party-in-interest