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3. Fair Value Measurements Fair Value Level Table (Details) (USD $) | 3 Months Ended |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
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Mar. 31, 2014 | Mar. 31, 2013 | Mar. 31, 2014 Fair Value, Measurements, Recurring [Member] | Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] | Mar. 31, 2014 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Mar. 31, 2014 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Mar. 31, 2014 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Mar. 31, 2014 Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Mar. 31, 2014 US Government Sponsored Agencies [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Mar. 31, 2014 US Government Sponsored Agencies [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Dec. 31, 2013 US Government Sponsored Agencies [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Mar. 31, 2014 US Government Sponsored Agencies [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Dec. 31, 2013 US Government Sponsored Agencies [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Mar. 31, 2014 US Government Sponsored Agencies [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Dec. 31, 2013 US Government Sponsored Agencies [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Mar. 31, 2014 Commercial Paper [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Dec. 31, 2013 Commercial Paper [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Mar. 31, 2014 Commercial Paper [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Dec. 31, 2013 Commercial Paper [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Mar. 31, 2014 Commercial Paper [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Dec. 31, 2013 Commercial Paper [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Mar. 31, 2014 Commercial Paper [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Dec. 31, 2013 Commercial Paper [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Mar. 31, 2014 Foreign Time Deposits [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Dec. 31, 2013 Foreign Time Deposits [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Mar. 31, 2014 Foreign Time Deposits [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Dec. 31, 2013 Foreign Time Deposits [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Mar. 31, 2014 Foreign Time Deposits [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Dec. 31, 2013 Foreign Time Deposits [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Mar. 31, 2014 Foreign Time Deposits [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Dec. 31, 2013 Foreign Time Deposits [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Mar. 31, 2014 Money Market Funds [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Dec. 31, 2013 Money Market Funds [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Mar. 31, 2014 Money Market Funds [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Dec. 31, 2013 Money Market Funds [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Mar. 31, 2014 Money Market Funds [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Dec. 31, 2013 Money Market Funds [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Mar. 31, 2014 Money Market Funds [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Dec. 31, 2013 Money Market Funds [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Mar. 31, 2014 Cash Equivalents [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Dec. 31, 2013 Cash Equivalents [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Mar. 31, 2014 Cash Equivalents [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Dec. 31, 2013 Cash Equivalents [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Mar. 31, 2014 Cash Equivalents [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Dec. 31, 2013 Cash Equivalents [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Mar. 31, 2014 Cash Equivalents [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Dec. 31, 2013 Cash Equivalents [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Mar. 31, 2014 Corporate Debt Securities [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Dec. 31, 2013 Corporate Debt Securities [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Mar. 31, 2014 Corporate Debt Securities [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Dec. 31, 2013 Corporate Debt Securities [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Mar. 31, 2014 Corporate Debt Securities [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Dec. 31, 2013 Corporate Debt Securities [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Mar. 31, 2014 Corporate Debt Securities [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Dec. 31, 2013 Corporate Debt Securities [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Mar. 31, 2014 Foreign Brokered Certificates of Deposit [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Dec. 31, 2013 Foreign Brokered Certificates of Deposit [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Mar. 31, 2014 Foreign Brokered Certificates of Deposit [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Dec. 31, 2013 Foreign Brokered Certificates of Deposit [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Mar. 31, 2014 Foreign Brokered Certificates of Deposit [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Dec. 31, 2013 Foreign Brokered Certificates of Deposit [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Mar. 31, 2014 Foreign Brokered Certificates of Deposit [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Dec. 31, 2013 Foreign Brokered Certificates of Deposit [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Mar. 31, 2014 US Government Sponsored Agencies [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Dec. 31, 2013 US Government Sponsored Agencies [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Mar. 31, 2014 US Government Sponsored Agencies [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Dec. 31, 2013 US Government Sponsored Agencies [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Mar. 31, 2014 US Government Sponsored Agencies [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Dec. 31, 2013 US Government Sponsored Agencies [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Mar. 31, 2014 US Government Sponsored Agencies [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Dec. 31, 2013 US Government Sponsored Agencies [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Mar. 31, 2014 Foreign Government Obligations [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Dec. 31, 2013 Foreign Government Obligations [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Mar. 31, 2014 Foreign Government Obligations [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Dec. 31, 2013 Foreign Government Obligations [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Mar. 31, 2014 Foreign Government Obligations [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Dec. 31, 2013 Foreign Government Obligations [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Mar. 31, 2014 Foreign Government Obligations [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Dec. 31, 2013 Foreign Government Obligations [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Mar. 31, 2014 Municipal obligations [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Dec. 31, 2013 Municipal obligations [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Mar. 31, 2014 Municipal obligations [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Dec. 31, 2013 Municipal obligations [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Mar. 31, 2014 Municipal obligations [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Dec. 31, 2013 Municipal obligations [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Mar. 31, 2014 Municipal obligations [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Dec. 31, 2013 Municipal obligations [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Mar. 31, 2014 Marketable Equity Securities [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Dec. 31, 2013 Marketable Equity Securities [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Mar. 31, 2014 Marketable Equity Securities [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Dec. 31, 2013 Marketable Equity Securities [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Mar. 31, 2014 Marketable Equity Securities [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Dec. 31, 2013 Marketable Equity Securities [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Mar. 31, 2014 Marketable Equity Securities [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Dec. 31, 2013 Marketable Equity Securities [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Mar. 31, 2014 Asset-backed Securities [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Dec. 31, 2013 Asset-backed Securities [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] | Mar. 31, 2014 Asset-backed Securities [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Dec. 31, 2013 Asset-backed Securities [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] | Mar. 31, 2014 Asset-backed Securities [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Dec. 31, 2013 Asset-backed Securities [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] | Mar. 31, 2014 Asset-backed Securities [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Dec. 31, 2013 Asset-backed Securities [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Mar. 31, 2014 Other Current Liabilities [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Dec. 31, 2013 Other Current Liabilities [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Mar. 31, 2014 Other Noncurrent Liabilities [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Dec. 31, 2013 Other Noncurrent Liabilities [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Mar. 31, 2014 Short-term Investments [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Dec. 31, 2013 Short-term Investments [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Mar. 31, 2014 Short-term Investments [Member] Corporate Debt Securities [Member] Fair Value, Measurements, Recurring [Member] | Dec. 31, 2013 Short-term Investments [Member] Corporate Debt Securities [Member] Fair Value, Measurements, Recurring [Member] | Mar. 31, 2014 Short-term Investments [Member] Foreign Brokered Certificates of Deposit [Member] Fair Value, Measurements, Recurring [Member] | Dec. 31, 2013 Short-term Investments [Member] Foreign Brokered Certificates of Deposit [Member] Fair Value, Measurements, Recurring [Member] | Mar. 31, 2014 Short-term Investments [Member] US Government Sponsored Agencies [Member] Fair Value, Measurements, Recurring [Member] | Dec. 31, 2013 Short-term Investments [Member] US Government Sponsored Agencies [Member] Fair Value, Measurements, Recurring [Member] | Mar. 31, 2014 Short-term Investments [Member] Foreign Government Obligations [Member] Fair Value, Measurements, Recurring [Member] | Dec. 31, 2013 Short-term Investments [Member] Foreign Government Obligations [Member] Fair Value, Measurements, Recurring [Member] | Mar. 31, 2014 Short-term Investments [Member] Municipal obligations [Member] Fair Value, Measurements, Recurring [Member] | Dec. 31, 2013 Short-term Investments [Member] Municipal obligations [Member] Fair Value, Measurements, Recurring [Member] | Mar. 31, 2014 Short-term Investments [Member] Marketable Equity Securities [Member] Fair Value, Measurements, Recurring [Member] | Dec. 31, 2013 Short-term Investments [Member] Marketable Equity Securities [Member] Fair Value, Measurements, Recurring [Member] | Mar. 31, 2014 Short-term Investments [Member] Asset-backed Securities [Member] Fair Value, Measurements, Recurring [Member] | Dec. 31, 2013 Short-term Investments [Member] Asset-backed Securities [Member] Fair Value, Measurements, Recurring [Member] | Mar. 31, 2014 Other Investments [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] | Dec. 31, 2013 Other Investments [Member] Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash Equivalents |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 | [1] | $ 1,200,000 | [1] | $ 1,200,000 | [1] | $ 0 | [1] | $ 0 | [1] | $ 1,200,000 | [1] | $ 1,200,000 | [1] | $ 0 | [1] | $ 0 | [1] | $ 7,500,000 | [1] | $ 7,000,000 | [1] | $ 0 | [1] | $ 0 | [1] | $ 7,500,000 | [1] | $ 7,000,000 | [1] | $ 19,000,000 | [1] | $ 11,100,000 | [1] | $ 0 | [1] | $ 0 | [1] | $ 0 | [1] | $ 0 | [1] | $ 19,000,000 | [1] | $ 11,100,000 | [1] | $ 2,400,000 | [1] | $ 1,200,000 | [1] | $ 0 | [1] | $ 0 | [1] | $ 0 | [1] | $ 0 | [1] | $ 2,400,000 | [1] | $ 1,200,000 | [1] | $ 21,400,000 | [1] | $ 12,300,000 | [1] | $ 8,700,000 | [1] | $ 8,200,000 | [1] | $ 0 | [1] | $ 0 | [1] | $ 30,100,000 | [1] | $ 20,500,000 | [1] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 | [2] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-for-sale Securities, Fair Value Disclosure |  |  | 611,400,000 | 570,900,000 | 366,500,000 | [2] | 325,200,000 | [2] | 244,900,000 | [2] | 245,700,000 | [2] | 0 | [2] | 0 | [2] | 611,400,000 | [2] | 570,900,000 | [2] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | [2] | 0 | [2] | 134,500,000 | [2] | 132,500,000 | [2] | 0 | [2] | 0 | [2] | 134,500,000 | [2] | 132,500,000 | [2] | 0 | [2] | 0 | [2] | 5,100,000 | [2] | 8,900,000 | [2] | 0 | [2] | 0 | [2] | 5,100,000 | [2] | 8,900,000 | [2] | 0 | [2] | 0 | [2] | 41,300,000 | [2] | 39,100,000 | [2] | 0 | [2] | 0 | [2] | 41,300,000 | [2] | 39,100,000 | [2] | 0 | [2] | 0 | [2] | 3,200,000 | [2] | 5,600,000 | [2] | 0 | [2] | 0 | [2] | 3,200,000 | [2] | 5,600,000 | [2] | 0 | [2] | 0 | [2] | 10,200,000 | [2] | 11,000,000 | [2] | 0 | [2] | 0 | [2] | 10,200,000 | [2] | 11,000,000 | [2] | 366,500,000 | [2] | 325,200,000 | [2] | 0 | [2] | 0 | [2] | 0 | [2] | 0 | [2] | 366,500,000 | [2] | 325,200,000 | [2] | 0 | [2] | 0 | [2] | 50,600,000 | [2] | 48,600,000 | [2] | 0 | [2] | 0 | [2] | 50,600,000 | [2] | 48,600,000 | [2] |  |  |  |  | 276,800,000 | 277,400,000 | 134,500,000 | 132,500,000 | 5,100,000 | 8,900,000 | 41,300,000 | 39,100,000 | 3,200,000 | 5,600,000 | 10,200,000 | 11,000,000 | 32,200,000 | 32,000,000 | 50,300,000 | 48,300,000 | 334,600,000 | 293,500,000
Forward Foreign Exchange Contracts, Asset, Fair Value Disclosure |  |  |  |  | 0 | [3] | 0 | [3] | 400,000 | [3] | 600,000 | [3] | 0 | [3] | 0 | [3] | 400,000 | [3] | 600,000 | [3] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure |  |  |  |  | 387,900,000 |  | 337,500,000 |  | 254,000,000 |  | 254,500,000 |  | 0 |  | 0 |  | 641,900,000 |  | 592,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward Foreign Exchange Contracts, Liability, Fair Value Disclosure |  |  |  |  | 0 | [4] | 0 | [4] | 400,000 | [4] | 1,100,000 | [4] | 0 | [4] | 0 | [4] | 400,000 | [4] | 1,100,000 | [4] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability | (4,893,000) | (711,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liabilities, Fair Value Disclosure |  |  |  |  | 0 |  | 0 |  | 400,000 |  | 1,100,000 |  | 15,900,000 |  | 20,800,000 |  | 16,300,000 |  | 21,900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingent Consideration at Fair Value |  |  |  |  | $ 0 | [5] | $ 0 | [5] | $ 0 | [5] | $ 0 | [5] | $ 15,900,000 | [5] | $ 20,800,000 | [5] | $ 15,900,000 | [5] | $ 20,800,000 | [5] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,000,000 | $ 6,100,000 | $ 12,900,000 | $ 14,700,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
[1] | Cash equivalents are included in Cash and cash equivalents in the Condensed Consolidated Balance Sheets.
[2] | Available-for-sale investments are included in the following accounts in the Condensed Consolidated Balance Sheets (in millions): March 31, 2014 December 31, 2013Short-term investments$276.8 $277.4Other investments334.6 293.5Total$611.4 $570.9
[3] | Forward foreign exchange contracts in an asset position are included in Prepaid expenses, taxes and other current assets in the Condensed Consolidated Balance Sheets.
[4] | Forward foreign exchange contracts in a liability position are included in Other current liabilities in the Condensed Consolidated Balance Sheets.
[5] | Contingent consideration liability is included in the following accounts in the Condensed Consolidated Balance Sheets (in millions): March 31, 2014 December 31, 2013Other current liabilities$3.0 $6.1Other long-term liabilities12.9 14.7 Total$15.9 $20.8

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