Business Combinations - Summary of Merger Consideration (Details) - USD ($) $ / shares in Units, $ in Thousands	Sep. 19, 2019	Jul. 06, 2018
Aquantia
Business Acquisition [Line Items]
Cash consideration to common stockholders	$ 479,547
Cash consideration - director, employee & consultant grant accelerations and payout for employee stock purchase plan	7,122
Stock consideration for replacement equity awards attributable to pre-combination service	15,520
Total merger consideration	$ 502,189
Cavium
Business Acquisition [Line Items]
Cash consideration to common stockholders		$ 2,819,812
Stock consideration for replacement equity awards attributable to pre-combination service		3,273,053
Cash consideration for intrinsic value of vested director stock options and employee accelerated awards attributable to pre-acquisition service		10,642
Stock consideration for employee accelerated awards attributable to pre-acquisition service		7,804
Fair value of the replacement equity awards attributable to pre-acquisition service		50,485
Total merger consideration		$ 6,161,796
Number of shares issued in acquisition		153,376,408
Acquisition share price (in usd per share)		$ 21.34

Business Combination, Cash Consideration Transferred, Employee Accelerated Awards

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Fair value at acquisition-date of the assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interests issued by the acquirer, including but not limited to, instruments or interests issued or issuable in consideration for the business combination.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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