Long-Term Investments (Notes)

9 Months Ended

Sep. 30, 2015

Investments, All Other Investments [Abstract]

Investments and Other Noncurrent Assets [Text Block]

Long-Term Investments

In the first nine months of 2015, the company sold approximately 18.2 million shares of BM&FBOVESPA S.A. (BM&FBOVESPA) and recognized a net gain of $3.4 million within investment income on the consolidated statements of income. As of September 30, 2015, the company owned an approximate 5% interest in BM&FBOVESPA. At September 30, 2015, the fair value and cost basis of the remaining investment in BM&FBOVESPA was $253.7 million and $340.0 million, respectively. Substantially all of the difference between the cost basis and fair value of the investment as of September 30, 2015 represents previous changes in foreign currency exchange rates that are suspended in accumulated other comprehensive income and released into current operations as the investment is sold.