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Derivatives and Financial Instruments - Additional Information (Detail) € in Millions, $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2015 EUR (€)
Derivative [Line Items] |  |  |
Debt, Long-term and Short-term, Combined Amount | $ 4,837.8 | $ 4,686.5 |
Description of Net Investment Hedge Activity | €500.0 million 2.45% Senior Notes due 2019 |  |
Gain (Loss) on Derivative Used in Net Investment Hedge, Net of Tax | $ 5.0 |  |
Foreign Exchange Contract [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative, Notional Amount | 576.4 | 331.5 |
Senior Notes [Member] | Senior Notes 2.45% Due 2019 |  |  |
Derivative [Line Items] |  |  |
Debt, Long-term and Short-term, Combined Amount | $ 559.8 | 548.4 | € 500.0
Valves And Controls [Member] |  |  |
Derivative [Line Items] |  |  |
Goodwill, Impairment Loss |  | 515.2 |
Impairment of Intangible Assets (Excluding Goodwill) |  | $ 39.5 |

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- Definition Contains all pertinent information about an entity's hedges of the foreign currency exposure of net investments in foreign operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5579245-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b),(c),(d) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5580258-113959 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=56946850&loc=d3e41620-113959 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5579240-113959 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=56946850&loc=d3e41641-113959 + Details
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