Taxation (Details - Income Tax Uncertainties) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Contingency [Line Items]
January 1	$ 16,584	$ 12,290	$ 51,529
Changes in tax positions taken during a prior period - Increase		2,075	3,629
Changes in tax positions taken during a prior period - decrease	(4,531)
Tax positions taken during the current period - increase	10,215	3,088	3,788
Change as a result of a lapse in the statute of limitations	(2,281)	(1,201)	(47,886)
Impact of the change in foreign currency exchange rates - increase	581	332	1,230
December 31	20,568	16,584	12,290
Unrecognized tax benefit that, if recognized, would impact the effective tax rate [Member]
Income Tax Contingency [Line Items]
January 1	15,784	11,879	51,529
Changes in tax positions taken during a prior period - Increase		1,571	3,194
Changes in tax positions taken during a prior period - decrease	(5,038)
Tax positions taken during the current period - increase	10,164	3,080	3,788
Change as a result of a lapse in the statute of limitations	(2,102)	(1,057)	(47,886)
Impact of the change in foreign currency exchange rates - increase	545	311	1,254
December 31	19,353	15,784	11,879
Interest and penalties recognized on the above [Member]
Income Tax Contingency [Line Items]
January 1	800	411	0
Changes in tax positions taken during a prior period - Increase	507	504	435
Tax positions taken during the current period - increase	51	8	0
Change as a result of a lapse in the statute of limitations	(179)	(144)	0
Impact of the change in foreign currency exchange rates - decrease			(24)
Impact of the change in foreign currency exchange rates - increase	36	21
December 31	$ 1,215	$ 800	$ 411