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3. Fair Value Measurements (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Millions | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Restricted Investments, at Fair Value |  | $ 5.6 |  | $ 4.6
Available-for-sale investments | [1] | 1,301.4 |  | 1,115.6
Forward foreign exchange contracts, Asset | [2] | 0.5 |  | 0.6
Financial Assets Carried at Fair Value |  | 1,411.8 |  | 1,173.7
Forward foreign exchange contracts, Liability | [3] | 1.6 |  | 1.3
Business Combination, Contingent Consideration, Liability | [4] | 16.7 |  | 38.5
Liabilities, Fair Value Disclosure |  | 18.3 |  | 39.8
Interest-bearing Deposits [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments |  | 0.7 |  | 3.6
Corporate Debt Securities [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 185.7 |  | 179.4
US Government Sponsored Agencies [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 67.6 |  | 82.5
Foreign Government Obligations [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 3.4 |  | 4.4
Municipal Obligations [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 15.0 |  | 15.4
Marketable Equity Securities [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 973.4 |  | 767.8
Asset-backed Securities [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 55.6 |  | 62.5
Foreign Time Deposits [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents | [5] | 53.7 |  | 11.8
US Government Sponsored Agencies [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents |  | 11.2 | [5] | 1.1
Money Market Funds [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents | [5] | 3.4 |  | 5.9
Commercial Paper [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents | [5] | 36.0 |  | 14.1
Cash Equivalents [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents | [5] | 104.3 |  | 52.9
Domestic Time Deposit [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents | [5] |  |  | 20.0
Fair Value, Inputs, Level 1 [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Restricted Investments, at Fair Value |  | 5.6 |  | 4.6
Available-for-sale investments | [1] | 973.4 |  | 767.8
Forward foreign exchange contracts, Asset | [2] | 0.0 |  | 0.0
Financial Assets Carried at Fair Value |  | 1,026.1 |  | 790.1
Forward foreign exchange contracts, Liability | [3] | 0.0 |  | 0.0
Business Combination, Contingent Consideration, Liability | [4] | 0.0 |  | 0.0
Liabilities, Fair Value Disclosure |  | 0.0 |  | 0.0
Fair Value, Inputs, Level 1 [Member] | Interest-bearing Deposits [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments |  | 0.0 |  | 0.0
Fair Value, Inputs, Level 1 [Member] | Corporate Debt Securities [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 0.0 |  | 0.0
Fair Value, Inputs, Level 1 [Member] | US Government Sponsored Agencies [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 0.0 |  | 0.0
Fair Value, Inputs, Level 1 [Member] | Foreign Government Obligations [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 0.0 |  | 0.0
Fair Value, Inputs, Level 1 [Member] | Municipal Obligations [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 0.0 |  | 0.0
Fair Value, Inputs, Level 1 [Member] | Marketable Equity Securities [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 973.4 |  | 767.8
Fair Value, Inputs, Level 1 [Member] | Asset-backed Securities [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 0.0 |  | 0.0
Fair Value, Inputs, Level 1 [Member] | Foreign Time Deposits [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents | [5] | 43.7 |  | 11.8
Fair Value, Inputs, Level 1 [Member] | US Government Sponsored Agencies [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents |  | 0.0 | [5] | 0.0
Fair Value, Inputs, Level 1 [Member] | Money Market Funds [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents | [5] | 3.4 |  | 5.9
Fair Value, Inputs, Level 1 [Member] | Commercial Paper [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents | [5] | 0.0 |  | 0.0
Fair Value, Inputs, Level 1 [Member] | Cash Equivalents [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents | [5] | 47.1 |  | 17.7
Fair Value, Inputs, Level 1 [Member] | Domestic Time Deposit [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents | [5] |  |  | 0.0
Fair Value, Inputs, Level 2 [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Restricted Investments, at Fair Value |  | 0.0 |  | 0.0
Available-for-sale investments | [1] | 328.0 |  | 347.8
Forward foreign exchange contracts, Asset | [2] | 0.5 |  | 0.6
Financial Assets Carried at Fair Value |  | 385.7 |  | 383.6
Forward foreign exchange contracts, Liability | [3] | 1.6 |  | 1.3
Business Combination, Contingent Consideration, Liability | [4] | 0.0 |  | 0.0
Liabilities, Fair Value Disclosure |  | 1.6 |  | 1.3
Fair Value, Inputs, Level 2 [Member] | Interest-bearing Deposits [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments |  | 0.7 |  | 3.6
Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 185.7 |  | 179.4
Fair Value, Inputs, Level 2 [Member] | US Government Sponsored Agencies [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 67.6 |  | 82.5
Fair Value, Inputs, Level 2 [Member] | Foreign Government Obligations [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 3.4 |  | 4.4
Fair Value, Inputs, Level 2 [Member] | Municipal Obligations [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 15.0 |  | 15.4
Fair Value, Inputs, Level 2 [Member] | Marketable Equity Securities [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 0.0 |  | 0.0
Fair Value, Inputs, Level 2 [Member] | Asset-backed Securities [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 55.6 |  | 62.5
Fair Value, Inputs, Level 2 [Member] | Foreign Time Deposits [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents | [5] | 10.0 |  | 0.0
Fair Value, Inputs, Level 2 [Member] | US Government Sponsored Agencies [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents |  | 11.2 | [5] | 1.1
Fair Value, Inputs, Level 2 [Member] | Money Market Funds [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents | [5] | 0.0 |  | 0.0
Fair Value, Inputs, Level 2 [Member] | Commercial Paper [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents | [5] | 36.0 |  | 14.1
Fair Value, Inputs, Level 2 [Member] | Cash Equivalents [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents | [5] | 57.2 |  | 35.2
Fair Value, Inputs, Level 2 [Member] | Domestic Time Deposit [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents | [5] |  |  | 20.0
Fair Value, Inputs, Level 3 [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Restricted Investments, at Fair Value |  | 0.0 |  | 0.0
Available-for-sale investments | [1] | 0.0 |  | 0.0
Forward foreign exchange contracts, Asset | [2] | 0.0 |  | 0.0
Financial Assets Carried at Fair Value |  | 0.0 |  | 0.0
Forward foreign exchange contracts, Liability | [3] | 0.0 |  | 0.0
Business Combination, Contingent Consideration, Liability | [4] | 16.7 |  | 38.5
Liabilities, Fair Value Disclosure |  | 16.7 |  | 38.5
Fair Value, Inputs, Level 3 [Member] | Interest-bearing Deposits [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments |  | 0.0 |  | 0.0
Fair Value, Inputs, Level 3 [Member] | Corporate Debt Securities [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 0.0 |  | 0.0
Fair Value, Inputs, Level 3 [Member] | US Government Sponsored Agencies [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 0.0 |  | 0.0
Fair Value, Inputs, Level 3 [Member] | Foreign Government Obligations [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 0.0 |  | 0.0
Fair Value, Inputs, Level 3 [Member] | Municipal Obligations [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 0.0 |  | 0.0
Fair Value, Inputs, Level 3 [Member] | Marketable Equity Securities [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 0.0 |  | 0.0
Fair Value, Inputs, Level 3 [Member] | Asset-backed Securities [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments | [1] | 0.0 |  | 0.0
Fair Value, Inputs, Level 3 [Member] | Foreign Time Deposits [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents | [5] | 0.0 |  | 0.0
Fair Value, Inputs, Level 3 [Member] | US Government Sponsored Agencies [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents |  | 0.0 | [5] | 0.0
Fair Value, Inputs, Level 3 [Member] | Money Market Funds [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents | [5] | 0.0 |  | 0.0
Fair Value, Inputs, Level 3 [Member] | Commercial Paper [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents | [5] | 0.0 |  | 0.0
Fair Value, Inputs, Level 3 [Member] | Cash Equivalents [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents | [5] | 0.0 |  | 0.0
Fair Value, Inputs, Level 3 [Member] | Domestic Time Deposit [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash equivalents | [5] |  |  | 0.0
Other Current Liabilities [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Business Combination, Contingent Consideration, Liability |  | 2.7 |  | 14.5
Short-term Investments [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments |  | 371.2 |  | 383.2
Short-term Investments [Member] | Interest-bearing Deposits [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments |  | 0.7 |  | 3.6
Short-term Investments [Member] | Corporate Debt Securities [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments |  | 185.7 |  | 179.4
Short-term Investments [Member] | US Government Sponsored Agencies [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments |  | 67.6 |  | 82.5
Short-term Investments [Member] | Foreign Government Obligations [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments |  | 3.4 |  | 4.4
Short-term Investments [Member] | Municipal Obligations [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments |  | 15.0 |  | 15.4
Short-term Investments [Member] | Marketable Equity Securities [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments |  | 43.4 |  | 35.7
Short-term Investments [Member] | Asset-backed Securities [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments |  | 55.4 |  | 62.2
Other Investments [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Available-for-sale investments |  | 930.2 |  | 732.4
Other Noncurrent Liabilities [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Business Combination, Contingent Consideration, Liability |  | $ 14.0 |  | $ 24.0
[1] | Available-for-sale investments are included in the following accounts in the Consolidated Balance Sheets (in millions):
| December 31, 2017 |  | December 31, 2016
Short-term investments | $ | 371.2 |  |  | $ | 383.2 |
Other investments | 930.2 |  |  | 732.4 |
Total | $ | 1,301.4 |  |  | $ | 1,115.6 |
[2] | Forward foreign exchange contracts in an asset position are included in Other current assets in the Consolidated Balance Sheets.
[3] | Forward foreign exchange contracts in a liability position are included in Other current liabilities in the Consolidated Balance Sheets.
[4] | Contingent consideration liabilities are included in the following accounts in the Consolidated Balance Sheets (in millions):
| December 31, 2017 |  | December 31, 2016
Other current liabilities | $ | 2.7 |  |  | $ | 14.5 |
Other long-term liabilities | 14.0 |  |  | 24.0 |
Total | $ | 16.7 |  |  | $ | 38.5 |
[5] | Cash equivalents are included in Cash and cash equivalents in the Consolidated Balance Sheets.

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=75030427&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82896770&loc=d3e26610-111562 + Details
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- Definition Amount of liability recognized arising from contingent consideration in a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 35 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476 + Details
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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps. + References No definition available. + Details
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- Definition Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into. + References No definition available. + Details
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- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition The aggregate value of all restricted investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-12C.9(c)) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611225-123010 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-12.6(c)) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611133-123010 + Details
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