CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income (loss)	$ (1,128)	$ 988
Other comprehensive income (loss):
Unrealized gain (loss) on derivatives, net of tax	(47)	340
Unrealized gain on available for sale securities, net of tax	86	368
Foreign currency translation adjustment	(1,722)	1,918
Total other comprehensive income (loss)	(1,683)	2,626
Total comprehensive income (loss)	$ (2,811)	$ 3,614