PROPERTY AND EQUIPMENT (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Property and Equipment
Property and equipment—gross	$ 121,654	$ 101,706
Accumulated depreciation	(47,557)	(27,923)
Property and equipment—net	74,097	73,783
Depreciation expense	19,500	15,400	$ 6,300
Production molds and tooling
Property and Equipment
Property and equipment—gross	45,614	41,188
Furniture, fixtures, and equipment
Property and Equipment
Property and equipment—gross	5,752	5,590
Computers and software
Property and Equipment
Property and equipment—gross	41,209	28,774
Leasehold improvements
Property and Equipment
Property and equipment—gross	$ 29,079	$ 26,154

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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