Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Equity (Schedule of Accumulated other comprehensive income (loss) (Details)

v3.8.0.1
Equity (Schedule of Accumulated other comprehensive income (loss) (Details) - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Balance as of beginning of period $ (13,479) $ (10,774)
Other comprehensive income (loss) before reclassifications 6,097 489
Amounts reclassified from accumulated other comprehensive loss (894) (385)
Other comprehensive income 5,203 104
Balance as of end of period (8,276) (10,670)
Net unrealized gain (loss) on cash flow hedges [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Balance as of beginning of period (24) (107)
Other comprehensive income (loss) before reclassifications 994 813
Amounts reclassified from accumulated other comprehensive loss (894) (385)
Other comprehensive income 100 428
Balance as of end of period 76 321
Foreign currency translation adjustments [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Balance as of beginning of period (13,455) (10,667)
Other comprehensive income (loss) before reclassifications 5,103 (324)
Amounts reclassified from accumulated other comprehensive loss
Other comprehensive income 5,103 (324)
Balance as of end of period $ (8,352) $ (10,991)