Balance Sheet Components (Schedule of Accounts Receivable and Related Allowances) (Details) - USD ($) $ in Thousands	Apr. 01, 2018		Jan. 01, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross accounts receivable	$ 318,358			$ 437,891
Total allowances	(1,256)			(25,093)
Total accounts receivable, net	317,102		$ 418,911	412,798
Allowance for doubtful accounts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total allowances	(1,256)			(1,257)
Allowance for sales returns
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total allowances	0	[1]		(20,189)
Allowance for price protection
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total allowances	$ 0	[1]		$ (3,647)

[1] Upon adoption of ASC 606, allowances for sales returns and price protection were reclassified to current liabilities as these reserve balances are considered refund liabilities. Refer to Note 3. Revenue Recognition, for additional information on the adoption impact.