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Credit Facility and Acquisition Debt (Narrative) (Details)	12 Months Ended
	Dec. 31, 2022 USD ($) letter_of_credit	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Dec. 09, 2022 USD ($)	May 27, 2022 USD ($)	Nov. 22, 2021 USD ($)	May 13, 2021 USD ($)
Debt Instrument [Line Items]
Letters of Credit | letter_of_credit	1
Debt instrument, term	77 months
Amortization of debt issuance costs	$ 552,000	$ 576,000	$ 782,000
Debt Issuance Costs, Gross	600,000							$ 200,000			$ 300,000
Line Of Credit Facility Accordion Provision	75,000,000
Line of Credit Facility, Remaining Borrowing Capacity	57,000,000
Debt Issuance Costs, Net	$ 1,864,000	1,543,000
Line of Credit | Prime Rate Option
Debt Instrument [Line Items]
Debt instrument interest rate (in percent)	2.375%
Line of Credit | LIBOR Margin Option
Debt Instrument [Line Items]
Debt instrument interest rate (in percent)	3.375%
Deferred Purchase Price Notes
Debt Instrument [Line Items]
Interest expense	$ 311,000	364,000	489,000
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)	7.30%
Debt instrument, term	5 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)	10.00%
Debt instrument, term	20 years
Credit Agreement
Debt Instrument [Line Items]
Long-term Debt	$ 190,700,000
Interest expense	7,105,000	1,820,000	3,738,000
Amortization of debt issuance costs			482,000
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		380,000	$ 412,000
Credit Agreement Amendment
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity									$ 250,000,000
New Term Loan
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity										$ 200,000,000
Revolving Credit Facility, Secured, Floating Rate
Debt Instrument [Line Items]
Present value of future deferred payments	2,300,000
Revolving Credit Facility, Secured, Floating Rate | Revolving Credit Facility | Line of Credit
Debt Instrument [Line Items]
Long-term Debt	$ 190,700,000	$ 155,400,000
Revolving Credit Facility, Secured, Floating Rate | Revolving Credit Facility | Credit Agreement
Debt Instrument [Line Items]
Debt Instrument, Interest Rate During Period	4.00%	3.80%
Ratio Actual
Debt Instrument [Line Items]
Ratio of indebtedness to net capital (in ratio)	6.00							6.00	5.25
Ratio Actual | Forecast
Debt Instrument [Line Items]
Ratio of indebtedness to net capital (in ratio)				5.00	5.25	5.50	5.75
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

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