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Venezuelan Operations (Affect of Foreign Currency Translation) (Details) - Venezuela [Member] $ in Thousands | 3 Months Ended | 7 Months Ended | 9 Months Ended | 12 Months Ended | 13 Months Ended | 14 Months Ended
--- | --- | --- | --- | --- | --- | ---
May 31, 2014 USD ($) / $ | Dec. 31, 2017 USD ($) / $ | Feb. 28, 2015 USD ($) / $ | Mar. 09, 2016 USD ($) / $ | Feb. 28, 2014 USD ($) / $ | May 18, 2017 USD ($) / $
Official Exchange Rate [Member] |  |  |  |  |  |
Foreign Operations Disclosure [Line Items] |  |  |  |  |  |
Exchange rate at System date change (VEF per US dollar) | / $ |  |  |  |  | 6.30 |
Foreign currency exchange loss |  |  |  |  | $ 15,379 |
Official Exchange Rate [Member] | Other Operating Income (Expense) [Member] |  |  |  |  |  |
Foreign Operations Disclosure [Line Items] |  |  |  |  |  |
Write down of inventories |  |  |  |  | 0 |
Official Exchange Rate [Member] | Foreign Currency Gain (Loss) [Member] |  |  |  |  |  |
Foreign Operations Disclosure [Line Items] |  |  |  |  |  |
Impairment of long-lived assets |  |  |  |  | $ 0 |
SICAD [Member] |  |  |  |  |  |
Foreign Operations Disclosure [Line Items] |  |  |  |  |  |
Exchange rate at System date change (VEF per US dollar) | / $ | 11.80 |  |  |  |  |
Foreign currency exchange loss | $ 19,697 |  |  |  |  |
SICAD [Member] | Other Operating Income (Expense) [Member] |  |  |  |  |  |
Foreign Operations Disclosure [Line Items] |  |  |  |  |  |
Write down of inventories | 7,611 |  |  |  |  |
SICAD [Member] | Foreign Currency Gain (Loss) [Member] |  |  |  |  |  |
Foreign Operations Disclosure [Line Items] |  |  |  |  |  |
Impairment of long-lived assets | $ 0 |  |  |  |  |
SICAD II [Member] |  |  |  |  |  |
Foreign Operations Disclosure [Line Items] |  |  |  |  |  |
Exchange rate at System date change (VEF per US dollar) | / $ |  |  | 49.98 |  |  |
Foreign currency exchange loss |  |  | $ 38,963 |  |  |
SICAD II [Member] | Other Operating Income (Expense) [Member] |  |  |  |  |  |
Foreign Operations Disclosure [Line Items] |  |  |  |  |  |
Write down of inventories |  |  | 9,937 |  |  |
SICAD II [Member] | Foreign Currency Gain (Loss) [Member] |  |  |  |  |  |
Foreign Operations Disclosure [Line Items] |  |  |  |  |  |
Impairment of long-lived assets |  |  | $ 45,186 |  |  |
SIMADI [Member] |  |  |  |  |  |
Foreign Operations Disclosure [Line Items] |  |  |  |  |  |
Exchange rate at System date change (VEF per US dollar) | / $ |  |  |  | 177.00 |  |
Foreign currency exchange loss |  |  |  | $ 8,046 |  |
SIMADI [Member] | Other Operating Income (Expense) [Member] |  |  |  |  |  |
Foreign Operations Disclosure [Line Items] |  |  |  |  |  |
Write down of inventories |  |  |  | 3,250 |  |
SIMADI [Member] | Foreign Currency Gain (Loss) [Member] |  |  |  |  |  |
Foreign Operations Disclosure [Line Items] |  |  |  |  |  |
Impairment of long-lived assets |  |  |  | $ 7,804 |  |
DICOM [Member] |  |  |  |  |  |
Foreign Operations Disclosure [Line Items] |  |  |  |  |  |
Exchange rate at System date change (VEF per US dollar) | / $ |  |  |  |  |  | 215.34
Foreign currency exchange loss |  |  |  |  |  | $ 117
DICOM [Member] | Other Operating Income (Expense) [Member] |  |  |  |  |  |
Foreign Operations Disclosure [Line Items] |  |  |  |  |  |
Write down of inventories |  |  |  |  |  | 401
DICOM [Member] | Foreign Currency Gain (Loss) [Member] |  |  |  |  |  |
Foreign Operations Disclosure [Line Items] |  |  |  |  |  |
Impairment of long-lived assets |  |  |  |  |  | $ 0
DICOM II [Member] |  |  |  |  |  |
Foreign Operations Disclosure [Line Items] |  |  |  |  |  |
Exchange rate at System date change (VEF per US dollar) | / $ |  | 2,010.00 |  |  |  |
Foreign currency exchange loss |  | $ 2,554 |  |  |  |
DICOM II [Member] | Other Operating Income (Expense) [Member] |  |  |  |  |  |
Foreign Operations Disclosure [Line Items] |  |  |  |  |  |
Write down of inventories |  | 1,375 |  |  |  |
DICOM II [Member] | Foreign Currency Gain (Loss) [Member] |  |  |  |  |  |
Foreign Operations Disclosure [Line Items] |  |  |  |  |  |
Impairment of long-lived assets |  | $ 0 |  |  |  |

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