Business Combinations - Summary of Estimated Fair Value of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands							12 Months Ended
	Mar. 12, 2023	Dec. 19, 2022	Apr. 11, 2022	Dec. 12, 2021	Sep. 13, 2021	Mar. 01, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Intangibles							$ (29,700)	$ (65,100)
Goodwill							398,800	373,600
Less seller obligations							4,300	31,500	$ 27,900
Cash Paid							59,600	114,000	243,000
2023 Acquisitions
Business Acquisition [Line Items]
Accounts receivable							7,100
Inventories							3,000
Other current assets							1,900
Property and equipment							4,200
Operating lease right-of-use asset							200
Intangibles							(29,700)
Goodwill							20,800
Other non-current assets							300
Accounts payable and other current liabilities							(3,200)
Other long-term liabilities							(100)
Fair value of assets acquired and purchase price							63,900
Less seller obligations							4,300
Cash Paid							59,600
Anchor
Business Acquisition [Line Items]
Accounts receivable							5,000
Inventories							1,600
Other current assets							1,900
Property and equipment							2,300
Operating lease right-of-use asset							0
Intangibles							(16,400)
Goodwill							13,300
Other non-current assets							200
Accounts payable and other current liabilities							(2,100)
Other long-term liabilities							0
Fair value of assets acquired and purchase price							38,600
Less seller obligations	$ 2,700						2,700
Cash Paid	$ 35,900						35,900
Other
Business Acquisition [Line Items]
Accounts receivable							2,100
Inventories							1,400
Other current assets							0
Property and equipment							1,900
Operating lease right-of-use asset							200
Intangibles							(13,300)
Goodwill							7,500
Other non-current assets							100
Accounts payable and other current liabilities							(1,100)
Other long-term liabilities							(100)
Fair value of assets acquired and purchase price							25,300
Less seller obligations							1,600
Cash Paid							$ 23,700
2022 Acquisitions
Business Acquisition [Line Items]
Cash								500
Accounts receivable								12,100
Inventories								16,800
Other current assets								500
Property and equipment								8,500
Operating lease right-of-use asset								800
Intangibles								(65,100)
Goodwill								53,700
Other non-current assets								100
Accounts payable and other current liabilities								(10,900)
Deferred income tax liabilities								(1,100)
Other long-term liabilities								(600)
Fair value of assets acquired and purchase price								145,500
Less seller obligations								31,500
Cash Paid								114,000
2022 Acquisitions | Adjustment
Business Acquisition [Line Items]
Accounts payable and other current liabilities								500
CAS
Business Acquisition [Line Items]
Cash								200
Accounts receivable								3,500
Inventories								13,400
Other current assets								100
Property and equipment								2,600
Operating lease right-of-use asset								800
Intangibles								(34,900)
Goodwill								32,900
Other non-current assets								0
Accounts payable and other current liabilities								(5,400)
Deferred income tax liabilities								0
Other long-term liabilities								(600)
Fair value of assets acquired and purchase price								82,400
Less seller obligations			$ 27,300					27,300
Cash Paid			$ 55,100					55,100
ABS
Business Acquisition [Line Items]
Cash								200
Accounts receivable								2,800
Inventories								900
Other current assets								300
Property and equipment								1,400
Operating lease right-of-use asset								0
Intangibles								(12,800)
Goodwill								9,700
Other non-current assets								0
Accounts payable and other current liabilities								(3,400)
Deferred income tax liabilities								(1,100)
Other long-term liabilities								0
Fair value of assets acquired and purchase price								23,600
Less seller obligations		$ 500						500
Cash Paid		$ 23,100						23,100
2021 Acquisitions
Business Acquisition [Line Items]
Cash									1,700
Accounts receivable									31,700
Inventories									11,800
Other current assets									5,300
Property and equipment									7,100
Operating lease right-of-use asset									200
Intangibles									(127,000)
Goodwill									107,300
Other non-current assets									700
Accounts payable and other current liabilities									(16,500)
Deferred income tax liabilities									(2,100)
Other long-term liabilities									(3,300)
Fair value of assets acquired and purchase price									270,900
Less seller obligations									27,900
Cash Paid									243,000
IWI
Business Acquisition [Line Items]
Cash									200
Accounts receivable									5,100
Inventories									1,100
Other current assets									3,000
Property and equipment									800
Operating lease right-of-use asset									0
Intangibles									(25,200)
Goodwill									23,300
Other non-current assets									300
Accounts payable and other current liabilities									(8,400)
Deferred income tax liabilities									0
Other long-term liabilities									(2,500)
Fair value of assets acquired and purchase price									48,100
Less seller obligations						$ 6,000			6,000
Cash Paid						$ 42,100			42,100
Five Star
Business Acquisition [Line Items]
Cash									1,500
Accounts receivable									4,600
Inventories									1,400
Other current assets									300
Property and equipment									1,100
Operating lease right-of-use asset									0
Intangibles									(17,400)
Goodwill									6,600
Other non-current assets									0
Accounts payable and other current liabilities									(1,100)
Deferred income tax liabilities									0
Other long-term liabilities									0
Fair value of assets acquired and purchase price									31,800
Less seller obligations					$ 5,500				5,500
Cash Paid					$ 26,300				26,300
AMD
Business Acquisition [Line Items]
Cash									0
Accounts receivable									8,400
Inventories									7,500
Other current assets									0
Property and equipment									1,100
Operating lease right-of-use asset									200
Intangibles									(52,800)
Goodwill									56,300
Other non-current assets									0
Accounts payable and other current liabilities									(200)
Deferred income tax liabilities									0
Other long-term liabilities									0
Fair value of assets acquired and purchase price									126,100
Less seller obligations				$ 6,600					6,600
Cash Paid				$ 119,500					119,500
Other
Business Acquisition [Line Items]
Cash								100	0
Accounts receivable								5,800	13,600
Inventories								2,500	1,800
Other current assets								100	2,000
Property and equipment								4,500	4,100
Operating lease right-of-use asset								0	0
Intangibles								(17,400)	(31,600)
Goodwill								11,100	21,100
Other non-current assets								100	400
Accounts payable and other current liabilities								(2,100)	(6,800)
Deferred income tax liabilities								0	(2,100)
Other long-term liabilities								0	(800)
Fair value of assets acquired and purchase price								39,500	64,900
Less seller obligations								3,700	9,800
Cash Paid								$ 35,800	$ 55,100