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Credit Facility and Acquisition Debt (Narrative) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2025 USD ($) letter_of_credit	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($) letter_of_credit	Jun. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)	May 27, 2022 USD ($)
Debt Instrument [Line Items]
Letters of Credit \| letter_of_credit	1		1
Debt instrument, term			47 months
Amortization of debt issuance costs			$ 255,000	$ 352,000
Line Of Credit Facility Accordion Provision	$ 75,000,000.0		75,000,000.0
Debt Issuance Costs, Net	1,442,000		1,442,000		$ 1,618,000
Series of Individually Immaterial Business Acquisitions
Debt Instrument [Line Items]
Interest expense	$ 93,000	$ 103,000	$ 187,000	207,000
Line of Credit \| Prime Rate
Debt Instrument [Line Items]
Debt instrument interest rate (in percent)			1.125%
Line of Credit \| Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Debt instrument interest rate (in percent)			2.125%
Deferred Purchase Price Notes \| Minimum
Debt Instrument [Line Items]
Deferred purchase price notes payable to sellers of acquired entities, discounted imputed interest rate (in Percent)	6.50%		6.50%
Debt instrument, term	9 years
Deferred Purchase Price Notes \| Maximum
Debt Instrument [Line Items]
Deferred purchase price notes payable to sellers of acquired entities, discounted imputed interest rate (in Percent)	7.30%		7.30%
Debt instrument, term	20 years
Credit Agreement
Debt Instrument [Line Items]
Interest expense	$ 2,102,000	3,523,000	$ 4,601,000	7,439,000
Letter of Credit
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity					15,000,000.0
Swingline
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity					10,000,000.0
Loans Payable
Debt Instrument [Line Items]
Amortization of debt issuance costs	89,000	$ 138,000	177,000	$ 276,000
Credit Agreement Amendment
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity						$ 250,000,000.0
Revolving Credit Facility, Secured, Floating Rate
Debt Instrument [Line Items]
Present value of future deferred payments			2,200,000
Revolving Credit Facility, Secured, Floating Rate \| Revolving Credit Facility \| Line of Credit
Debt Instrument [Line Items]
Long-term debt	112,900,000		112,900,000		$ 137,000,000
Line of Credit Facility, Remaining Borrowing Capacity	$ 134,900,000		$ 134,900,000
Revolving Credit Facility, Secured, Floating Rate \| Revolving Credit Facility \| Credit Agreement
Debt Instrument [Line Items]
Debt Instrument, Interest Rate During Period	6.80%	8.70%	6.90%	8.80%
Ratio Actual
Debt Instrument [Line Items]
Ratio of indebtedness to net capital (in ratio)	5.00		5.00
Ratio Actual \| Revolving Credit Facility, Secured, Floating Rate \| Revolving Credit Facility \| Line of Credit
Debt Instrument [Line Items]
Ratio of earnings to fixed cost obligations (in ratio)	1.20		1.20