Segment Reporting Information (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Segment Reporting Information [Line Items]
Net sales	$ 148,651	$ 117,393	$ 266,820	$ 230,749
Depreciation and amortization	6,422	3,348	10,731	6,634
Income (Loss) from operations	(3,301)	(3,141)	(16,617)	(5,015)
Assets	742,046		742,046		$ 401,521
Unallocated corporate expenses
Segment Reporting Information [Line Items]
Income (Loss) from operations	(5,065)	(2,833)	(9,621)	(5,901)
Assets	19,075		19,075		13,526
U. S. Wholesale
Segment Reporting Information [Line Items]
Net sales	124,348	94,770	215,143	182,162
Depreciation and amortization	5,287	2,301	8,429	4,603
U. S. Wholesale \| Operating Segments
Segment Reporting Information [Line Items]
Income (Loss) from operations	2,101	3,712	(3,427)	5,947
Assets	619,288		619,288		281,398
International
Segment Reporting Information [Line Items]
Net sales	19,083	19,365	40,929	40,593
Depreciation and amortization	1,130	1,014	2,292	1,965
International \| Operating Segments
Segment Reporting Information [Line Items]
Income (Loss) from operations	(204)	(3,743)	(3,424)	(4,900)
Assets	102,584		102,584		105,984
Retail Direct
Segment Reporting Information [Line Items]
Net sales	5,220	3,258	10,748	7,994
Depreciation and amortization	5	33	10	66
Retail Direct \| Operating Segments
Segment Reporting Information [Line Items]
Income (Loss) from operations	(133)	$ (277)	(145)	$ (161)
Assets	$ 1,099		$ 1,099		$ 613

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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