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Major Customer, Segment and Geographic Information (Revenue for Each Class of Similar Products) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Net sales for each class of similar products
Percentage of Total	100.00%	100.00%	100.00%
Net sales	$ 2,541,488	$ 2,788,163	$ 3,042,371
Watches
Net sales for each class of similar products
Percentage of Total	80.00%	78.90%	76.60%
Net sales	$ 2,033,021	$ 2,199,031	$ 2,330,275
Leathers
Net sales for each class of similar products
Percentage of Total	11.40%	11.70%	12.90%
Net sales	$ 289,385	$ 325,502	$ 393,761
Jewelry
Net sales for each class of similar products
Percentage of Total	6.60%	7.60%	8.30%
Net sales	$ 167,775	$ 211,694	$ 251,391
Other
Net sales for each class of similar products
Percentage of Total	2.00%	1.80%	2.20%
Net sales	$ 51,307	$ 51,936	$ 66,944

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 606
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 606
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-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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