Quarterly report pursuant to Section 13 or 15(d)

Derivative Financial Instruments (Narrative) (Details)

v2.4.0.6
Derivative Financial Instruments (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Dec. 31, 2011
Derivative Financial Instruments [Abstract]          
Maximum net exposure to counterparty     $ 193    
Cash flow hedge gain (loss) reclassified to revenue 157 245 278 (30)  
Accumulated derivative instrument gain (loss) 145   145   506
Adjustment to accumulated other comprehensive income $ (492) $ 493 $ (651) $ 58