CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income	$ 49,481	$ 38,656
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	7,377	7,113
Provision for doubtful accounts	283	231
Share based compensation	1,558	706
Deferred tax benefit	(2,051)	(2,556)
Change in fair value of derivatives	(1,869)	314
Changes in:
Accounts receivable	(43,163)	(48,735)
Inventories	(27,345)	(4,979)
Other assets	542	71
Accounts payable and accrued expenses	(8,145)	(7,784)
Income taxes, net	7,203	4,391
Net cash used in operating activities	(16,129)	(12,572)
Cash flows from investing activities:
Purchases of short-term investments	(25,988)	(48,629)
Proceeds from sale of short-term investments	10,033	15,621
Purchases of equipment and leasehold improvements	(2,253)	(4,260)
Payment for intangible assets acquired	(764)	(642)
Proceeds from sale of trademark	5,886
Net cash used in investing activities	(13,086)	(37,910)
Cash flows from financing activities:
Repayments of long-term debt	(16,567)	(16,567)
Proceeds from exercise of stock options	839	1,235
Proceeds from sale of shares of subsidiary		1,449
Dividends paid	(15,891)	(13,349)
Dividends paid to noncontrolling interest	(5,947)	(4,863)
Purchase of stock of subsidiary		(2,470)
Net cash (used in) financing activities	(37,566)	(34,565)
Effect of exchange rate changes on cash	13,320	4,032
Net decrease in cash and cash equivalents	(53,461)	(81,015)
Cash and cash equivalents - beginning of period	161,828	176,967
Cash and cash equivalents - end of period	108,367	95,952
Cash paid for:
Interest	1,351	1,758
Income taxes	$ 16,823	$ 18,881