Line of Credit, Long-Term Debt and Finance Lease Obligations - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Feb. 11, 2022
Debt Instrument [Line Items]
Debt Instrument, Frequency of Periodic Payment	payable semi-annually in arrears on February 15 and August 15, beginning on August 15, 2022
Debt Instrument, Description	Notes are guaranteed on an unsecured senior basis by the same subsidiaries and affiliated professional contractors that guarantee the Amended Credit Agreement (as defined below). The indenture under which the 2030 Notes are issued, among other things, limits the Company's ability to (1) incur liens, (2) enter into sale and lease-back transactions and (3) merge or dispose of all or substantially all of its assets, in all cases, subject to a number of customary exceptions
Purchase Price	101.00%
Debt instrument interest rate	5.375%
Line of Credit facility, available balance	$ 450,000
Credit Agreement [Member]
Debt Instrument [Line Items]
Long term debt	593,900	$ 611,200
5.37% Unsecured Senior Notes Due 2030 Member
Debt Instrument [Line Items]
Senior Notes			$ 400,000
Debt instrument interest rate			5.375%
Interest accrued periodically	21,500
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Unsecured Debt	37,500
Revolving Credit Facility [Member] | Long-Term Debt
Debt Instrument [Line Items]
Unsecured Long-Term Debt	250,000
Revolving Credit Facility [Member] | Credit Agreement [Member]
Debt Instrument [Line Items]
Unsecured Debt	$ 450,000
Interest Rate, description	(i) the Alternate Base Rate (defined as the highest of (a) the prime rate as announced by Bank of America, N.A., (b) the Federal Funds Rate plus 0.50% and (c) Term Secured Overnight Financing Rate ("SOFR") for an interest period of one month plus 1.00% with a 1.00% floor) plus an applicable margin rate of 0.50% for the first two fiscal quarters after the date of the Credit Agreement Amendment, and thereafter at an applicable margin rate ranging from 0.125% to 0.750% based on the Company's consolidated net leverage ratio or (ii) Term SOFR rate (calculated as the Secured Overnight Financing Rate published on the applicable Reuters screen page plus a spread adjustment of 0.10%, 0.15% or 0.25% depending on if the Company selects a one-month, three-month or six-month interest period, respectively, for the applicable loan with a 0% floor), plus an applicable margin rate of 1.50% for the first two full fiscal quarters after the date of the Credit Agreement Amendment, and thereafter at an applicable margin rate ranging from 1.125% to 1.750% based on the Company's consolidated net leverage ratio. The Amended Credit Agreement also provides for other customary fees and charges, including an unused commitment fee with respect to the Revolving Credit Line ranging from 0.150% to 0.200% of the unused lending commitments under the Revolving Credit Line
Letters of Credit [Member]
Debt Instrument [Line Items]
Letters of credit outstanding amount	$ 0
Term A loan [Member]
Debt Instrument [Line Items]
Long term debt	$ 25,000	$ 18,700