CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Unaudited) (Parenthetical) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Comprehensive income (loss):
Tax effects on unrealized gains/(losses) on marketable securities	$ 70	$ 7,678
Tax effects on reclassification adjustment for (gains)/losses included in net income (loss)	0	951
Tax effect on Pension liability amortization	117	74
Tax effect on amortization of (gains)/losses on cash flow hedges	(119)	(9)
Accumulated Other Comprehensive Income
Comprehensive income (loss):
Tax effects on unrealized gains/(losses) on marketable securities	70	7,678
Tax effects on reclassification adjustment for (gains)/losses included in net income (loss)	0	951
Tax effect on Pension liability amortization	117	74
Tax effect on amortization of (gains)/losses on cash flow hedges	$ (119)	$ (9)