CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating Activities
Net income	$ 41,781	$ 41,063
Adjustments to reconcile net income to cash provided by operating activities
Depreciation and amortization	2,444	1,124
Non-cash lease expense	1,619	889
Share-based compensation	2,275	2,198
Amortization of premium on investment securities	11	28
Change in operating assets and liabilities:
Inventories	(8,929)	(8,842)
Income taxes, prepaid	945	0
Prepaid expenses and other current assets	3,107	(266)
Other assets	(6,632)	(70)
Accounts payable and accrued expenses	7,052	29,202
Net cash flow provided by operating activities	43,673	65,326
Investing Activities
Sale and maturities of investment securities	1,245	3,720
Purchase of property and equipment	(3,009)	(4,598)
Net cash flow used in investing activities	(1,764)	(878)
Financing Activities
Options exercised by executives and directors	0	481
Net shares repurchased for taxes	(1,459)	(1,807)
Cash dividends paid to stockholders	(16,660)	(13,392)
Stock repurchases	(10,000)	(7,500)
Net cash flow used in financing activities	(28,119)	(22,218)
Foreign currency impact	30	78
Increase in cash and cash equivalents	13,820	42,308
Cash and cash equivalents - beginning of the period	104,183	163,723
Cash and cash equivalents - end of period	118,003	206,031
Supplemental disclosure of cash flow information:
Income taxes paid	62	56
Dividends declared included in accounts payable	$ 19,663	$ 17,292