v3.8.0.1
PARTNERS' EQUITY Table 7 - Balance of and Changes in Accumulated Other Comprehensive Income (Loss) (Details)
$ in Thousands
 3 Months Ended
Mar. 31, 2018
USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Balance as of January 1, 2017 $ (84,927)
Other comprehensive income (loss) 20,924
Balance as of March 31, 2018 (64,003)
Foreign Currency Translation  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Balance as of January 1, 2017 (51,603)
Other comprehensive income (loss) before reclassification adjustments 2,312
Other comprehensive income (loss) 2,372
Balance as of March 31, 2018 (49,231)
Cash Flow Hedges  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Balance as of January 1, 2017 (24,304)
Other comprehensive income (loss) before reclassification adjustments 17,421
Other comprehensive income (loss) 18,811
Balance as of March 31, 2018 (5,493)
Pension and Other Postretirement Benefits  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Balance as of January 1, 2017 (9,020)
Other comprehensive income (loss) before reclassification adjustments 0
Other comprehensive income (loss) (259)
Balance as of March 31, 2018 (9,279)
Total  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Balance as of January 1, 2017 (84,927)
Other comprehensive income (loss) before reclassification adjustments 19,733
Other comprehensive income (loss) 20,924
Balance as of March 31, 2018 (64,003)
Other income, net | Foreign Currency Translation  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Reclassification from accumulated other comprehensive income, current period, net of tax 0
Other 60
Other income, net | Cash Flow Hedges  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Reclassification from accumulated other comprehensive income, current period, net of tax 0
Other 0
Other income, net | Pension and Other Postretirement Benefits  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Reclassification from accumulated other comprehensive income, current period, net of tax (203)
Other (56)
Other income, net | Total  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Reclassification from accumulated other comprehensive income, current period, net of tax (203)
Other 4
Interest expense, net | Foreign Currency Translation  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Reclassification from accumulated other comprehensive income, current period, net of tax 0
Interest expense, net | Cash Flow Hedges  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Reclassification from accumulated other comprehensive income, current period, net of tax 1,390
Interest expense, net | Pension and Other Postretirement Benefits  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Reclassification from accumulated other comprehensive income, current period, net of tax 0
Interest expense, net | Total  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Reclassification from accumulated other comprehensive income, current period, net of tax $ 1,390