Quarterly report pursuant to Section 13 or 15(d)

Accumulated Other Comprehensive Income (Details)

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Accumulated Other Comprehensive Income (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax [Roll Forward]        
Beginning Balance, Foreign currency     $ 3,196  
Other comprehensive income before reclassifications, net of tax, Foreign currency     (1,762) [1]  
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax     0 [1]  
Net other comprehensive income, Foreign currency (2,085) (780) (1,762) 610
Ending Balance, Foreign currency 1,434   1,434  
Accumulated Other Comprehensive Income (Loss), Gross Unrealized Gains [Roll Forward]        
Beginning Balance, Unrealized gains in Accumulated OCI     4,160  
Other comprehensive income before reclassifications, net of tax, Unrealized gains in Accumulated OCI     1,829 [1]  
Amounts reclassified from accumulated other comprehensive income, net of tax, Unrealized gains in Accumulated OCI     (4,593) [1]  
Net other comprehensive income, Unrealized gains in Accumulated OCI     (2,764)  
Ending Balance, Unrealized gains in Accumulated OCI $ 1,396   $ 1,396  
[1] Effective tax rate of 38.47%.