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Other Investments | 6 Months Ended
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Jun. 30, 2018
Other Investments [Abstract] |
Other Investments [Text Block] | Other Investments In March 2018, the Company made an initial equity investment of €15 million ($19 million) in its licensee in Greece (“Greece”), for a 20% ownership stake. In connection with this investment, the Company entered into an agreement to purchase an additional 20% equity interest, 10% in March 2019 and 10% in March 2020, for €15 million. In June 2018, the Company completed its purchase of the additional 20% equity investment for €16 million ($18 million), including an acceleration premium, and as of June 30, 2018, had a 40% ownership stake in Greece. The Company’s equity investment is recorded within other non-current assets. The Company’s share of Greece’s results are reported within operating expenses and are not material for the three and six months ended June 30, 2018.

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