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Business Combination - Additional Information (Details) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
	Jul. 06, 2018	Aug. 04, 2018	Aug. 03, 2019
Business Acquisition [Line Items]
Equity issuance costs		$ 2,927
Cavium
Business Acquisition [Line Items]
Consideration paid	$ 6,200,000
Acquisition related costs			$ 53,700
Debt financing costs			22,800
Equity issuance costs			2,900
Cavium \| Prepaid Expenses and Other Current Assets
Business Acquisition [Line Items]
Debt financing costs			400
Cavium \| Other Non-current Assets
Business Acquisition [Line Items]
Debt financing costs			1,100
Cavium \| Long-term Debt
Business Acquisition [Line Items]
Debt financing costs			$ 8,400