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Organization and Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2022
Organization and Summary of Significant Accounting Policies [Abstract]  
Shipping and handling costs associated with outbound freight The table below presents shipping and handling costs associated with outbound freight, which we include in selling and administrative expenses (in thousands):
202220212020
$89,002 $75,411 $59,224 
Advertising expense
We expense advertising costs when incurred. The table below presents advertising expense for the past three years (in thousands):
202220212020
$28,778 $9,409 $6,755 
Fair value measurements
The table below presents our assets and liabilities measured and recorded at fair value on a recurring basis (in thousands):
 Fair Value at December 31,
Input LevelClassification20222021
Assets
     Unrealized gains on interest rate swapsLevel 2Other assets$34,049 $6,054 
     Deferred compensation plan assetLevel 1Other assets13,148 17,503 
Liabilities
     Contingent consideration liabilitiesLevel 3
Accrued expenses and other current liabilities
$554 $985 
     Unrealized losses on interest rate swapsLevel 2
Accrued expenses and other current liabilities
— 3,215 
     Deferred compensation plan liabilityLevel 1Other long-term liabilities13,148 17,503 
Summary of changes in allowance for doubtful accounts
The following table summarizes the changes in our allowance for doubtful accounts for the past three years (in thousands):
 202220212020
Balance at beginning of year$5,942 $4,808 $5,472 
Bad debt expense7,449 3,377 1,900 
Write-offs, net of recoveries(3,869)(2,243)(2,564)
Balance at end of year$9,522 $5,942 $4,808 
Summary of changes in allowance for inventory obsolescence
The following table summarizes the changes in our reserve for inventory obsolescence for the past three years (in thousands):

 202220212020
Balance at beginning of year$15,196 $11,398 $9,036 
Provision for inventory write-downs11,989 7,781 6,181 
Deduction for inventory write-offs(5,977)(3,983)(3,819)
Balance at end of year$21,208 $15,196 $11,398 
Estimated useful lives of property and equipment We depreciate property and equipment on a straight-line basis over the following estimated useful lives:
Buildings40 years
Leasehold improvements (1)
1 - 10 years
Autos and trucks3 - 6 years
Machinery and equipment3 - 15 years
Computer equipment3 - 7 years
Furniture and fixtures5 - 10 years

(1)For substantial improvements made near the end of a lease term where we are reasonably certain the lease will be renewed, we amortize the leasehold improvement over the remaining life of the lease including the expected renewal period.
Depreciation expense
The table below presents depreciation expense for the past three years (in thousands):
202220212020
$30,381 $28,287 $27,967 
Accumulated other comprehensive loss
The table below presents the components of our Accumulated other comprehensive income (loss) balance (in thousands):
 December 31,
20222021
Foreign currency translation adjustments$(19,608)$(9,580)
Unrealized gains on interest rate swaps, net of tax
25,503 2,096 
Accumulated other comprehensive income (loss)$5,895 $(7,484)
Supplemental disclosures to Consolidated Statements of Cash Flows
The following table presents supplemental disclosures to the accompanying Consolidated Statements of Cash Flows (in thousands):

 Year Ended December 31,
 202220212020
Cash paid during the year for:   
Interest $39,759 $10,023 $8,257 
Income taxes, net of refunds314,714 83,953 81,792 
Schedule of recent accounting pronouncements pending adoption
The following table summarizes the remaining recent accounting pronouncements that we plan to adopt in future periods:
StandardDescriptionEffective DateEffect on Financial Statements and Other Significant Matters
ASU 2020-04, Reference Rate Reform (Topic 848), Facilitation of the Effects of Reference Rate Reform on Financial Reporting

ASU 2021-01, Reference Rate Reform (Topic 848): Scope.

ASU 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848,
Provides temporary optional guidance to ease the potential burden in accounting for reference rate reform. The guidance provides optional expedients and exceptions for applying generally accepted accounting principles to transactions affected by reference rate reform if certain criteria are met. These transactions include: contract modifications, hedging relationships, and sale or transfer of debt securities classified as held-to-maturity. Entities may apply the provisions of the new standard as of the beginning of the reporting period when the election is made. In January 2021, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848): Scope, which refined the scope of ASC 848 and clarified some of its guidance as it relates to recent rate reform activities. In December 2022, the FASB issued ASU 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848, which extended the date to December 31, 2024.
The provisions of this update are available until December 31, 2024.In 2022, we adopted the hedge accounting expedient related to the probability of forecasted transactions to assert probability of the hedged interest regardless of any expected modification related to reference rate reform. We may apply other elections as applicable. We do not expect that there will be a material impact to the financial statements as a result of adopting this ASU.