Quarterly report pursuant to Section 13 or 15(d)

Accumulated Other Comprehensive Income (Components Of Accumulated Other Comprehensive Income) (Details)

v3.8.0.1
Accumulated Other Comprehensive Income (Components Of Accumulated Other Comprehensive Income) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance as of December 31, 2016     $ (1,005)  
Other comprehensive income (loss) before reclassifications     277  
Amounts reclassified from other comprehensive income (loss)     231  
Net current period other comprehensive income (loss) $ 265 $ 255 508 $ 699
Balance as of September 30, 2017 (497)   (497)  
Foreign Currency Translation Adjustments [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance as of December 31, 2016     (1,729)  
Other comprehensive income (loss) before reclassifications     2,454  
Amounts reclassified from other comprehensive income (loss)     (149)  
Net current period other comprehensive income (loss)     2,305  
Balance as of September 30, 2017 576   576  
Unrealized Gains (Losses) on Cash Flow Hedges [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance as of December 31, 2016     724  
Other comprehensive income (loss) before reclassifications     (2,177)  
Amounts reclassified from other comprehensive income (loss)     380  
Net current period other comprehensive income (loss)     (1,797)  
Balance as of September 30, 2017 $ (1,073)   $ (1,073)