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Fair Value Measurements (Tables)
 12 Months Ended
Dec. 31, 2021
Fair Value Disclosures [Abstract]  
Schedule of fair value of assets and liabilities measured on recurring basis
The following tables set forth our assets and liabilities that were measured at fair value on a recurring basis by level within the fair value hierarchy:
(in thousands)
As of December 31, 2021Quoted Prices in Active Markets for Identical Assets
(Level 1)		Significant Other Observable Inputs
(Level 2)		Significant Unobservable Inputs
(Level 3)		Balance at December 31, 2021
    
Assets    
Money market funds (1)
$76 $— $— $76 
Equity mutual funds (2)
$826 $— $— $826 
Cross currency swaps (3)
$— $4,256 $— $4,256 
Foreign currency exchange contracts (3)
$— $6,512 $— $6,512 
Liabilities
Foreign currency exchange contracts (3)
$— $601 $— $601 
Deferred compensation (4)
$826 $— $— $826 
Contingent payments - acquisitions$— $— $7,230 $7,230 

(in thousands)
As of December 31, 2020Quoted Prices in Active Markets for Identical Assets
(Level 1)		Significant Other Observable Inputs
(Level 2)		Significant Unobservable Inputs
(Level 3)		Balance at December 31, 2020
    
Assets    
Money market funds (1)
$76 $— $— $76 
Equity mutual funds (2)
$1,145 $— $— $1,145 
Foreign currency exchange contracts (3)
$— $125 $— $125 
Liabilities
Cross currency swaps (3)
$— $2,841 $— $2,841 
Foreign currency exchange contracts (3)
$— $12,373 $— $12,373 
Deferred compensation (4)
$1,145 $— $— $1,145 
(1)Money market funds with an original maturity of less than ninety days are included within cash and cash equivalents. The remaining balance of cash and cash equivalents as of December 31, 2021, and December 31, 2020, consisted of demand deposits.
(2)Equity mutual funds relate to a deferred compensation plan that was assumed as part of a previous business combination. This amount is included within other long-term assets. Refer to footnote (4) below for a discussion of the related deferred compensation liability.
(3)Cross currency swaps and foreign currency exchange contracts are included within other current assets; other long-term assets; accrued liabilities; or other long-term liabilities depending on the gain (loss) position and anticipated settlement date.
(4)A deferred compensation plan assumed as part of a previous business combination is included within accrued liabilities and other long-term liabilities. The fair value of our deferred compensation plan is indexed to the performance of the underlying equity mutual funds discussed in footnote (2) above.
Schedule of contingent consideration liability
We record changes in the estimated fair value of contingent consideration in the consolidated statements of income. Changes in contingent consideration liabilities are measured at fair value on a recurring basis using unobservable inputs (Level 3) and during the year ended December 31, 2021, are as follows:

(in thousands)Fair Value
 
Contingent consideration as of December 31, 2020$— 
Contingent consideration recorded from acquisitions (Note 4)5,230 
Change in estimated fair value2,000 
Contingent consideration as of December 31, 2021$7,230