Debt - Additional Information (Detail) - USD ($) $ in Thousands		1 Months Ended	12 Months Ended
	Oct. 06, 2020	Aug. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Line of Credit Facility [Line Items]
Capitalized interest costs			$ 200	$ 1,500	$ 1,100
Proceeds from sale of business			743,178	0	838
Loss on extinguishment of debt and write-off of debt issuance costs			1,532	3,293	$ 19,562
Current maturities of long-term debt			4,885	19,106
Life Sciences | Discontinued Operations, Disposed of by Sale
Line of Credit Facility [Line Items]
Proceeds from sale of business	$ 757,200
Senior Secured Term Loan
Line of Credit Facility [Line Items]
Debt instrument, face amount			$ 545,000
Interest rate during period			6.50%
Senior debt			$ 47,728	526,313
Senior Secured Term Loan | London Interbank Offered Rate (LIBOR)
Line of Credit Facility [Line Items]
Basis spread on variable rate			5.75%
Senior Secured Term Loan | London Interbank Offered Rate (LIBOR) | Minimum
Line of Credit Facility [Line Items]
Interest rate			0.75%
Incremental Term Loan
Line of Credit Facility [Line Items]
Debt instrument, face amount			$ 300,000
Interest rate during period			5.90%
Senior debt			$ 22,716	257,111
Incremental Term Loan | London Interbank Offered Rate (LIBOR)
Line of Credit Facility [Line Items]
Basis spread on variable rate			5.75%
Senior Secured Revolver
Line of Credit Facility [Line Items]
Line of credit face amount			$ 60,000	75,000
Commitment fee percentage			0.50%
Senior debt			$ 0	$ 0
Future borrowing capacity			45,400
Outstanding letters of credit			$ 14,600
Minimum payment on senior secured revolver		$ 15,000
Excess cash		35,000
Senior Secured Revolver | Debt Covenant Period Two
Line of Credit Facility [Line Items]
Line of credit face amount		50,000
Senior Secured Revolver | London Interbank Offered Rate (LIBOR)
Line of Credit Facility [Line Items]
Basis spread on variable rate			4.00%
Senior Secured Revolver | Prime Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate			3.00%
Credit Agreement
Line of Credit Facility [Line Items]
Cash proceeds from sale		$ 675,000
Debt issuance costs			$ 400
Loss on extinguishment of debt and write-off of debt issuance costs			$ 1,500
Senior Secured And Incremental Term Loans
Line of Credit Facility [Line Items]
Repayments of debt	$ 700,000
Foreign Line of Credit
Line of Credit Facility [Line Items]
Debt, weighted average interest rate			2.77%
Weighted average remaining term			6 years 8 months 12 days
International credit facilities			$ 14,400
Current maturities of long-term debt			4,500
Interest Rate Swap
Line of Credit Facility [Line Items]
Derivative, notional amount			$ 700,000
Derivative, fixed interest rate			2.4575%