Revenue (Summary of Impact on Financial Statements) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Assets
Accounts receivable	$ 328,022	$ 367,013
Inventories	377,622	573,788
Prepaid expenses and other current assets	149,552	118,943
Liabilities:
Customer liabilities	71,252	27,946
Net sales	2,541,488	2,788,163	$ 3,042,371
Cost of sales	1,201,351	$ 1,429,324	$ 1,464,185
Without Adoption of ASU 2014-09
Assets
Accounts receivable	301,217
Inventories	401,317
Prepaid expenses and other current assets	126,043
Liabilities:
Customer liabilities	25,780
Net sales	2,551,962
Cost of sales	1,201,165
Impact of Adoption of ASU 2014-09 \| Accounting Standards Update 2014-09
Assets
Accounts receivable	26,805
Inventories	(23,695)
Prepaid expenses and other current assets	23,509
Liabilities:
Customer liabilities	45,472
Net sales	(10,474)
Cost of sales	$ 186

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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