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Investment in Securities Policies (Policies)	9 Months Ended
Investment in Securities Policies (Policies)	Sep. 30, 2015
Investments, Debt and Equity Securities [Abstract]
Trading Securities, Policy [Policy Text Block]	Trading Securities Trading securities are recorded at fair value with subsequent changes in fair value recorded as “Fair value gains (losses), net” in our condensed consolidated statements of operations and comprehensive income.
Marketable Securities, Available-for-sale Securities, Policy [Policy Text Block]	Available-for-Sale Securities We measure available-for-sale (“AFS”) securities at fair value with unrealized gains and losses, recorded net of tax, as a component of “Other comprehensive income (loss)” and we recognize realized gains and losses from the sale of AFS securities in “Investment gains, net” in our condensed consolidated statements of operations and comprehensive income.