Fair value, as of the balance sheet date, of potential cash payments under the contingent consideration arrangement.

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Derivative instrument notional amount.

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Amount of net loss recognized on derivative.

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Represents the face amount of life insurance policies taken by the entity for their employees.

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Represents the number of employees covered under life insurance policy contracts.

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Percentage of weighted average cost of capital.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Fair value portion of the amount that could be realized under a life insurance contract or contracts owned by the entity, commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI).

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Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity.

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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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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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).

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Amount of issuances of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Fair Value Measurements (Details) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
Fair Value Measurements (Details) $ in Thousands	Sep. 30, 2021 USD ($) employee	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) employee	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)	Nov. 30, 2021 USD ($)
Fair Value Measurements
Number of employees covered under life insurance policies \| employee	89		89
Combined face value of life insurance policies	$ 63,900		$ 63,900
Cash surrender value	6,700		$ 6,700		$ 5,400
Minimum
Fair Value Measurements
Weighted average cost of capital			10.50%
Maximum
Fair Value Measurements
Weighted average cost of capital			17.00%
Contingent earn-out obligations
Reconciliation of the fair value of contingent earn-out obligations that use significant unobservable inputs (Level 3)
Balance at beginning of year			$ 25,979	$ 28,497	28,497
Issuances			16,155		16,715
Settlements			(3,831)		(10,114)
Adjustments to fair value			(4,523)		(9,119)
Balance at end of period	33,780		33,780		25,979
Recurring basis \| Total
Fair Value Measurements
Cash and cash equivalents	67,721		67,721		54,896
Life insurance-cash surrender value	6,683		6,683		5,420
Contingent earn-out obligations	33,780		33,780		25,979
Recurring basis \| Quoted Market Prices In Active Markets for Identical Assets (Level 1)
Fair Value Measurements
Cash and cash equivalents	67,721		67,721		54,896
Recurring basis \| Significant Other Observable Inputs (Level 2)
Fair Value Measurements
Life insurance-cash surrender value	6,683		6,683		5,420
Recurring basis \| Significant Unobservable Inputs (Level 3)
Fair Value Measurements
Contingent earn-out obligations	33,780		33,780		25,979
Interest Rate Swap
Fair Value Measurements
Net loss on derivative	100	$ 200	400	$ 200
Interest Rate Swap \| Not Designated as Hedging Instrument, Economic Hedge [Member]
Fair Value Measurements
Notional amount	$ 130,000		$ 130,000			$ 80,000
Interest Rate Swap \| Recurring basis \| Total \| Not Designated as Hedging Instrument, Economic Hedge [Member]
Fair Value Measurements
Interest rate swap liability					42
Interest Rate Swap \| Recurring basis \| Significant Other Observable Inputs (Level 2) \| Not Designated as Hedging Instrument, Economic Hedge [Member]
Fair Value Measurements
Interest rate swap liability					$ 42