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Net Interest and Other (Notes)
12 Months Ended
Dec. 31, 2018
Income Statement [Abstract]  
Other Nonoperating Income and Expense [Text Block]
15. NET INTEREST AND OTHER
Net interest and other includes interest expense, interest income, amortization of debt discount and debt issuance costs, the non-service cost components of net periodic benefit cost, and foreign exchange gains and losses from the remeasurement of certain financial instruments. For the year ended December 31, 2018, a foreign exchange loss of $2.8 million from the remeasurement of certain financial instruments was reported as a component of net interest and other. Foreign exchange gains and losses were not material for the years ended December 31, 2017 and 2016.