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Accounting Policies (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 USD ($) branches | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Nontrade Receivables | $ 219,100 | $ 136,700 |  |
Accounts Receivable, Allowance for Credit Loss, Current | 41,700 | 23,900 |  |
Accounts Receivable, Credit Loss Expense (Reversal) | 12,900 | 10,100 |  | $ 7,000
Inventory Valuation Reserves | 50,300 | 28,700 |  |
Inventory Write-down | 37,100 | 15,700 |  | $ 10,000
Intangible Assets, Net (Including Goodwill) | 4,000,000 |  |  |
Self Insurance Reserve | $ 30,600 | $ 27,900 |  |
Change in Accounting Estimate, Description | As of December 31, 2020, $39.1 million of the trademarks impacted by the master brand strategy had indefinite lives and $9.5 million had remaining estimated useful lives ranging from 3 to 8 years. As disclosed further below, the Company continually evaluates whether events or circumstances have occurred that would require a change to the estimated useful lives of indefinite-lived and definite lived intangible assets. When such a change is warranted, the remaining carrying amount of the intangible asset is amortized prospectively over the revised remaining useful life. Accordingly, during the second quarter of 2021, the Company changed the estimated useful lives of the trademarks affected by the new corporate brand strategy to coincide with the expected period of time to migrate such sub-brands to the master brand architecture. The Company assigned remaining estimated useful lives to these trademarks, including those that previously had indefinite lives, ranging from less than one year to 5 years. |  |  |
Supplier volume rebate income percentage | 1.40% | 1.10% |  | 1.20%
Number of Locations | branches | 800 |  |  |
Property, buildings and equipment, net | $ 379,012 | $ 399,157 | [1] |
Finite-Lived Intangible Assets, Amortization Expense | 119,600 | 66,500 |  | $ 35,500
Intangible Assets, Amortization Period |  |  |  |
Finite-Lived Intangible Assets, Amortization Expense | $ 32,000 |  |  |
Leasehold Improvements |  |  |  |
Property, Plant and Equipment, Estimated Useful Lives | five to forty years |  |  |
Furniture and Fixtures [Member] |  |  |  |
Property, Plant and Equipment, Estimated Useful Lives | two to ten years |  |  |
Software and Software Development Costs [Member] |  |  |  |
Property, Plant and Equipment, Estimated Useful Lives | three to seven years |  |  |
Land, Buildings and Improvements |  |  |  |
Property, buildings and equipment, net | $ 133,600 |  |  |
Cost of Goods Sold |  |  |  |
Out-of-Period Adjustment |  | 18,900 |  |
Net Income |  |  |  |
Out-of-Period Adjustment |  | 14,400 |  |
Inventories |  |  |  |
Out-of-Period Adjustment |  | 60,300 |  |
Goodwill |  |  |  |
Out-of-Period Adjustment |  | 33,900 |  |
Deferred Income Tax Liability |  |  |  |
Out-of-Period Adjustment |  | $ 12,000 |  |
Minimum |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 1 year |  |  |
Maximum |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 20 years |  |  |
[1] | The components of property, buildings and equipment as of December 31, 2020 exclude a total of $0.3 million that is classified as held for sale, as disclosed in Note 7, "Assets and Liabilities Held For Sale".(2) The furniture, fixtures and equipment, and software costs components of property, buildings and equipment as of December 31, 2020 reflect a $6.4 million reclassification between the previously reported amounts of those components to conform to the current period's presentation.

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