CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:
Net income	$ 33,580	$ 57,366
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	7,723	8,451
Provision for doubtful accounts	456	409
Noncash stock compensation	689	631
Deferred tax (benefit) expense	(799)	4,542
Changes in:
Accounts receivable	(51,455)	34,589
Inventories	(3,566)	33,945
Other assets	(411)	1,222
Accounts payable and accrued expenses	(12,347)	(44,649)
Income taxes, net	12,931	(74,974)
Net cash provided by (used in) operating activities	(13,199)	21,532
Cash flows from investing activities:
Purchases of short-term investments	(248,193)	(253,969)
Proceeds from sale of short-term investments	214,975	106,904
Purchases of equipment and leasehold improvements	(2,584)	(3,726)
Proceeds from sale of equipment		2,801
Payment for intangible assets acquired	(821)	(2,145)
Net cash used in investing activities	(36,623)	(150,135)
Cash flows from financing activities:
Repayments of loans payable - banks, net	(5,841)	(27,526)
Proceeds from exercise of options	861	1,319
Proceeds from sale of stock of subsidiary	1,030
Dividends paid	(11,128)	(9,831)
Dividends paid to noncontrolling interest	(4,667)	(8,341)
Purchase of treasury stock	(37)
Net cash used in financing activities	(19,782)	(44,379)
Effect of exchange rate changes on cash	(5,861)	2,800
Net decrease in cash and cash equivalents	(75,465)	(170,182)
Cash and cash equivalents - beginning of period	125,650	307,335
Cash and cash equivalents - end of period	50,185	137,153
Supplemental disclosure of cash flow information:
Interest	1,028	1,322
Income taxes	$ 6,396	$ 103,737