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Acquisitions and Divestiture - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended			3 Months Ended
	Apr. 30, 2021	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Business Acquisition [Line Items]
Purchases of businesses, net of cash acquired				$ 263,948	$ 116,605
Future amortization expense, year five		$ 6,000		6,000
Proceeds from sale of business				0	245,311
Gain (loss) on disposition of business				0	(141,020)
Income tax expense relating to sale of business					$ 31,400
2020 Consolidated Acquisition
Business Acquisition [Line Items]
Purchases of businesses, net of cash acquired		263,900
Total other intangible assets acquired		125,500		125,500
Finite-lived intangible assets acquired				106,600
Expected amortization, remainder of fiscal year		6,000		6,000
Future amortization expense, year one		6,000		6,000
Future amortization expense, year two		6,000		6,000
Future amortization expense, year three		6,000		6,000
Future amortization expense, year four		$ 6,000		6,000
2020 Consolidated Acquisition | Trade Names
Business Acquisition [Line Items]
Indefinite-lived intangible trade names acquired				18,900
2020 Consolidated Acquisition | Customer Relationship
Business Acquisition [Line Items]
Finite-lived intangible assets acquired				$ 85,000
2020 Consolidated Acquisition | Customer Relationship | Minimum
Business Acquisition [Line Items]
Amortization period for finite-lived intangible asset				18 years
2020 Consolidated Acquisition | Customer Relationship | Maximum
Business Acquisition [Line Items]
Amortization period for finite-lived intangible asset				20 years
2020 Consolidated Acquisition | Purchased Technology
Business Acquisition [Line Items]
Finite-lived intangible assets acquired				$ 21,600
2020 Consolidated Acquisition | Purchased Technology | Minimum
Business Acquisition [Line Items]
Amortization period for finite-lived intangible asset				12 years
2020 Consolidated Acquisition | Purchased Technology | Maximum
Business Acquisition [Line Items]
Amortization period for finite-lived intangible asset				14 years
NSI | Subsequent Event
Business Acquisition [Line Items]
Payments to acquire businesses, gross	$ 230,000
Business acquisition, estimated annual sales	90,000
Abaco | Subsequent Event
Business Acquisition [Line Items]
Payments to acquire businesses, gross	1,350,000
Business acquisition, estimated annual sales	$ 325,000
Kymera International | Reading Alloys
Business Acquisition [Line Items]
Proceeds from sale of business			$ 245,300

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