Short-term Investments (Notes)

6 Months Ended

Jun. 30, 2015

Short-term Investments [Abstract]

Investment [Text Block]

Short-term Investments

As of June 30, 2015, our short-term investments are comprised of bank time deposits with original maturities of greater than three months and remaining maturities of less than twelve months. The maturity dates range from September 2015 to October 2015. These short-term investments are classified as held-to-maturity investments, which are recorded at amortized cost. The carrying values of our short-term investments approximate fair value.