Foreign Currency Gain (Loss), Net	12 Months Ended
Foreign Currency Gain (Loss), Net	Dec. 31, 2016
Foreign Currency [Abstract]
Foreign Currency Gain (Loss), Net	15. Foreign Currency Gain (Loss), Net Net foreign currency gain or loss includes non-cash translation gain or loss associated with intercompany balances. A substantial portion of the Company’s net foreign currency gain or loss is non-cash translation gain or loss associated with intercompany long-term loans to our Korean subsidiary. The loans are denominated in U.S. dollars and are affected by changes in the exchange rate between the Korean won and the U.S. dollar. As of December 31, 2016, 2015 and 2014, the outstanding intercompany loan balances including accrued interest between the Korean subsidiary and the Dutch subsidiary were $598,212 thousand, $591,388 thousand and $765,265 thousand, respectively. The Korean won to U.S. dollar exchange rates were 1,208.5:1, 1,172.0:1 and 1,099.2:1 using the first base rate as of December 31, 2016, 2015 and 2014, respectively, as quoted by the KEB Hana Bank.

The entire disclosure for foreign currency transactions and translation. This may include description of foreign currency transactions, foreign currency gains and losses, explanation of change in cumulative translation adjustment, description of effect of subsequent foreign currency exchange rate change, cumulative translation adjustment movement, foreign currency translation adjustment by component movement, translation adjustment for net investment hedge movement, adjustment for long-term intercompany transactions, schedule of long-term intercompany balances and any other foreign currency transactions and translation related items.