Quarterly report pursuant to Section 13 or 15(d)

Accumulated Other Comprehensive Income (Details)

v3.7.0.1
Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Accumulated other comprehensive income (loss) at beginning of period $ (12,892) $ (11,014) $ (22,617) $ (20,836)
Other comprehensive income (loss) before reclassifications 99 374 9,913 11,562
Amounts reclassified from other comprehensive income (503) (133) (592) (1,499)
Net other comprehensive income (loss) during the period (404) 241 9,321 10,063
Accumulated other comprehensive income (loss) at end of period (13,296) (10,773) (13,296) (10,773)
Unrealized Gains (Losses) on Available-For-Sale Securities [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Accumulated other comprehensive income (loss) at beginning of period 0 (4) (4) (2)
Other comprehensive income (loss) before reclassifications (4) 4 0 2
Amounts reclassified from other comprehensive income 0 0 0 0
Net other comprehensive income (loss) during the period (4) 4 0 2
Accumulated other comprehensive income (loss) at end of period (4) 0 (4) 0
Unrealized Holding Gains (Losses) on Derivative Transactions [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Accumulated other comprehensive income (loss) at beginning of period 5,246 (2,417) 6,773 6,087
Other comprehensive income (loss) before reclassifications (5,537) (787) (6,975) (7,925)
Amounts reclassified from other comprehensive income (503) (133) (592) (1,499)
Net other comprehensive income (loss) during the period (6,040) (920) (7,567) (9,424)
Accumulated other comprehensive income (loss) at end of period (794) (3,337) (794) (3,337)
Foreign Currency Translation Adjustments [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Accumulated other comprehensive income (loss) at beginning of period (18,138) (8,593) (29,386) (26,921)
Other comprehensive income (loss) before reclassifications 5,640 1,157 16,888 19,485
Amounts reclassified from other comprehensive income 0 0 0 0
Net other comprehensive income (loss) during the period 5,640 1,157 16,888 19,485
Accumulated other comprehensive income (loss) at end of period $ (12,498) $ (7,436) $ (12,498) $ (7,436)