Financial Instruments - Additional Information (Details) $ in Thousands	3 Months Ended
Mar. 31, 2023 USD ($) swap	Dec. 31, 2022 USD ($)
Debt Securities, Available-for-sale [Line Items]
Par value of available-for-sale debt securities	$ 43,900	$ 44,400
Funds held for clients	$ 148,240	171,313
Interest rate swap, April 2028 expiration
Debt Securities, Available-for-sale [Line Items]
Interest rate swap, fixed interest rate	3.669%
Interest rate swap
Debt Securities, Available-for-sale [Line Items]
Number of interest rate swaps outstanding \| swap	5
Other non-current liability \| Interest rate swap, April 2028 expiration
Debt Securities, Available-for-sale [Line Items]
Term of contract	5 years
Notional amount, asset	$ 25,000
Interest rate swap, fixed interest rate	3.669%
Certified Deposits and Other Depository Assets
Debt Securities, Available-for-sale [Line Items]
Funds held for clients	$ 1,000	$ 900

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454

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Nominal or face amount used to calculate payments on the derivative asset.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

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Fixed interest rate related to the interest rate derivative.

+ References

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Carrying amount as of the balance sheet date of the funds held on behalf of others and that are expected to be liquidated within one year or the normal operating cycle, if longer. This does not include funds held under reinsurance agreements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(8))
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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