Organization and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

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):

2019		2018		2017
$	51,580	$	48,610	$	45,247

Advertising expense

We expense advertising costs when incurred. The table below presents advertising expense for the past three years (in thousands):

2019		2018		2017
$	7,842	$	7,390	$	7,477

Fair value measurements

	Fair Value at December 31,
	2019		2018
Level 2
Unrealized gains on interest rate swaps	$	655	$	2,378
Unrealized losses on interest rate swaps	919		—
Level 3
Contingent consideration liabilities	$	703	$	1,117

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):

	2019		2018		2017
Balance at beginning of year	$	6,182	$	3,897	$	4,050
Bad debt expense	2,768		4,164		916
Write-offs, net of recoveries	(3,478)		(1,879)		(1,069)
Balance at end of year	$	5,472	$	6,182	$	3,897

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):

	2019		2018		2017
Balance at beginning of year	$	7,726	$	6,264	$	6,531
Provision for inventory write-downs	3,656		3,998		2,660
Deduction for inventory write-offs	(2,346)		(2,536)		(2,927)
Balance at end of year	$	9,036	$	7,726	$	6,264

Estimated useful lives of property and equipment

We depreciate property and equipment on a straight-line basis over the following estimated useful lives:

Buildings	40 years
Leasehold improvements (1)	1 - 10 years
Autos and trucks	3 - 6 years
Machinery and equipment	3 - 15 years
Computer equipment	3 - 7 years
Furniture and fixtures	5 - 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):

2019		2018		2017
$	27,885	$	26,122	$	24,157

Redeemable noncontrolling interest

The table below presents the changes in Redeemable noncontrolling interest (in thousands):

	2019		2018		2017
Redeemable noncontrolling interest, beginning of period	$	—	$	—	$	2,287
Redemption value adjustment of noncontrolling interest	—		—		360
Net loss attributable to noncontrolling interest	—		—		(294)
Other comprehensive income attributable to noncontrolling interest	—		—		220
Less: purchase of redeemable noncontrolling interest	—		—		2,573
Redeemable noncontrolling interest, end of period	$	—	$	—	$	—

Accumulated other comprehensive loss

The table below presents the components of our Accumulated other comprehensive loss balance (in thousands):

	December 31,
	2019		2018
Foreign currency translation adjustments	$	(10,127)	$	(12,422)
Unrealized (losses) gains on interest rate swaps, net of tax (1)	(232)		1,425
Accumulated other comprehensive loss	$	(10,359)	$	(10,997)

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,
	2019		2018		2017
Cash paid during the year for:
Interest	$	20,960	$	17,796	$	12,957
Income taxes, net of refunds	51,076		50,091		84,251

Schedule of recent accounting pronouncements pending adoption

The following table summarizes the remaining recent accounting pronouncements that we plan to adopt in future periods:

Standard	Description	Effective Date	Effect on Financial Statements and Other Significant Matters
ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments	Changes the way companies evaluate credit losses for most financial assets and certain other instruments. For trade and other receivables, held-to-maturity debt securities, loans and other instruments, entities will be required to use a new forward-looking “expected loss” model to evaluate impairment, potentially resulting in earlier recognition of allowances for losses. The new standard also requires enhanced disclosures, including the requirement to disclose the information used to track credit quality by year of origination for most financing receivables. The guidance must be applied using a cumulative-effect transition method.	Annual periods beginning after December 15, 2019	We do not expect this accounting pronouncement will have a material impact on our financial position or results of operations.
ASU 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment	Eliminates the requirement to calculate the implied fair value of goodwill to measure a goodwill impairment charge (commonly referred to as Step 2 under the current guidance). Rather, the measurement of a goodwill impairment charge will be based on the excess of a reporting unit’s carrying value over its fair value (Step 1 under the current guidance). This guidance should be applied prospectively.	Annual and interim impairment tests performed in periods beginning after December 15, 2019	We do not expect this accounting pronouncement will have a material impact on our financial positions, results of operations and related disclosures.
ASU 2018-15, Intangibles - Goodwill and Other - Internal Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract	Aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software and hosting arrangements that include an internal-use software license. The amendments may be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption.	Annual periods beginning after December 15, 2019	We do not expect this accounting pronouncement will have a material impact on our financial positions, results of operations and related disclosures.
ASU 2019-12, Income Taxes (Topic 740), Simplifying the Accounting for Income Taxes	Simplifies the accounting for income taxes by eliminating 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 basis differences. This guidance should generally be applied prospectively.	Annual periods beginning after December 15, 2020	We are currently evaluating the effect this will have on our financial position, results of operations and related disclosures.