Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net income	$ 32,168	$ 67,235
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	6,751	6,329
Provision for doubtful accounts	3,455	748
Lease expense	53	1,046
Share based compensation	1,805	2,735
Deferred tax (benefit)	(1,390)	(4,183)
Change in fair value of derivatives	(604)	(1,377)
Changes in:
Accounts receivable	(3,095)	(43,189)
Inventories	(5,629)	(12,222)
Other assets	533	(1,915)
Accounts payable and accrued expenses	(57,147)	(15,973)
Income taxes, net	2,946	7,469
Net cash provided by (used in) operating activities	(20,154)	6,703
Cash flows from investing activities:
Purchases of short-term investments	(7,162)	(27,694)
Proceeds from sale of short-term investments		39,355
Purchase of equity investment	(13,998)
Purchases of equipment and leasehold improvements	(3,013)	(4,727)
Payment for intangible assets acquired	(971)	(5,519)
Net cash provided by (used in) investing activities	(25,144)	1,415
Cash flows from financing activities:
Repayments of long-term debt	(12,380)	(16,795)
Proceeds from issuance of long-term debt	13,438
Proceeds from exercise of stock options	796	2,781
Purchase of subsidiary shares from noncontrolling interest		(6,087)
Dividends paid	(20,805)	(25,928)
Dividends paid to noncontrolling interest	(324)	(9,654)
Net cash used in financing activities	(19,275)	(55,683)
Effect of exchange rate changes on cash	5,506	(7,114)
Net decrease in cash and cash equivalents	(59,067)	(54,679)
Cash and cash equivalents - beginning of period	192,417	193,136
Cash and cash equivalents - end of period	133,350	138,457
Cash paid for:
Interest	776	1,391
Income taxes	$ 10,330	$ 20,888