Quarterly report pursuant to Section 13 or 15(d)

Derivative Financial Instruments (Narrative) (Details)

v2.4.0.8
Derivative Financial Instruments (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Dec. 31, 2012
Derivative Financial Instruments [Abstract]          
Maximum net exposure to counterparty     $ 783    
Cash flow hedge gain (loss) reclassified to revenue 337 157 832 278  
Accumulated derivative instrument gain (loss) 619   619   169
Adjustment to accumulated other comprehensive income $ 1,140 $ 492 $ 450 $ 651