GEOGRAPHIC INFORMATION AND REVENUES BY PRODUCT GROUP: (Details 3) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenues by product group
Total revenue	$ 500,799	$ 259,251	$ 154,640
ICs
Revenues by product group
Total revenue	95,103	46,564	57,030
Boards
Revenues by product group
Total revenue	155,670	98,004	67,085
Switch systems and gateways
Revenues by product group
Total revenue	168,231	76,398	19,461
Cables, accessories and other
Revenues by product group
Total revenue	$ 81,795	$ 38,285	$ 11,064