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Cash and Cash Equivalents and Short-term Investments | 6 Months Ended
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Jun. 30, 2016
Cash, Cash Equivalents, and Short-term Investments [Abstract] |
Cash and Cash Equivalents and Short-term Investments | Cash and Cash Equivalents and Short-term Investments Cash and cash equivalents include cash balances and all highly liquid debt instruments with initial maturities of three months or less. Short-term investments include certificates of deposit, money market funds and highly liquid debt instruments purchased with initial maturities in excess of three months but less than one year and are carried at amortized cost, respectively, which approximates fair value. At June 30, 2016, Cash and cash equivalents and Short-term investments were $689 million compared to $740 million at December 31, 2015. Of the total balances, $87 million and $105 million was restricted as to its use at June 30, 2016 and December 31, 2015, respectively. Included within the June 30, 2016 and December 31, 2015 balances, respectively, were £43.4 million ($59.4 million at June 30, 2016 exchange rates) and £43.3 million ($64.6 million at December 31, 2015 exchange rates) of operating funds required to be held by the Company in the U.K. by the Financial Conduct Authority, a U.K.-based regulator, which were included in Short-term investments.

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- Definition The entire disclosure of the components of cash, cash equivalents, and short-term investments. Short-term investments may include current marketable securities. + References No definition available. + Details
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