Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating activities:
Net income	$ 22,568	$ 22,252
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,102	1,149
Equity-based compensation	1,491	976
Deferred income taxes		2,423
Changes in operating assets and liabilities:
Accounts receivable	(6,747)	(1,963)
Inventories	(7,986)	(5,183)
Income taxes receivable	2,909	(4,700)
Prepaid expenses and other current assets	(16,013)	(5,813)
Other assets	(361)	(2,346)
Accounts payable	20,781	10,349
Income taxes payable	2,761	637
Accrued expenses	6,723	1,016
Returns reserve	20,330	11,869
Right-of-use lease assets and current and non-current lease liabilities	(52)	(222)
Other current liabilities	6,291	2,765
Net cash provided by operating activities	53,797	33,209
Investing activities:
Purchases of property and equipment	(1,070)	(736)
Net cash used in investing activities	(1,070)	(736)
Financing activities:
Proceeds from the exercise of stock options, net	126	4,317
Net cash provided by financing activities	126	4,317
Effect of exchange rate changes on cash and cash equivalents	(701)	104
Net increase in cash and cash equivalents	52,152	36,894
Cash and cash equivalents, beginning of period	218,455	146,013
Cash and cash equivalents, end of period	270,607	182,907
Supplemental disclosure of cash flow information:
Income taxes, net of refund	713	364
Operating leases	1,369	1,397
Supplemental disclosure of non-cash activities:
Lease assets obtained in exchange for new operating lease liabilities	$ 11,105	$ 1,440