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Commitments and Contingencies - Additional Information (Detail) In Millions, unless otherwise specified	3 Months Ended	39 Months Ended	3 Months Ended		27 Months Ended	3 Months Ended	1 Months Ended
	Mar. 31, 2014 Chemport USD ($)	Mar. 31, 2014 Chemport USD ($)	Mar. 31, 2014 BASF USD ($)	Mar. 31, 2014 Slanhmor USD ($)	Mar. 31, 2014 Slanhmor USD ($)	Mar. 31, 2014 Amr One Hundred One Contract	Sep. 30, 2013 Chemport USD ($)	Jul. 31, 2011 Chemport USD ($)	Mar. 31, 2014 Chemport USD ($)	Dec. 31, 2013 Chemport USD ($)	Dec. 31, 2012 Chemport Anticipated investment before the end of 2012 USD ($)	Mar. 31, 2014 Chemport Maximum USD ($)	Mar. 31, 2014 Further Indication for AMR101 Laxdale Limited Potential Marketing Approval 1 USD ($)	Mar. 31, 2014 Further Indication for AMR101 Laxdale Limited Potential Marketing Approval 1 GBP (£)	Mar. 31, 2014 Further Indication for AMR101 Laxdale Limited Potential Marketing Approval 2 USD ($)	Mar. 31, 2014 Further Indication for AMR101 Laxdale Limited Potential Marketing Approval 2 GBP (£)	Mar. 31, 2014 Further Indication for AMR101 Laxdale Limited Maximum USD ($)	Mar. 31, 2014 Further Indication for AMR101 Laxdale Limited Maximum GBP (£)	Mar. 31, 2014 First Indication for AMR101 Laxdale Limited USD ($)	Mar. 31, 2014 First Indication for AMR101 Laxdale Limited GBP (£)
Commitments and Contingencies Disclosure [Line Items]
Number of signed agreements						2
Payment made under the agreements	$ 1.3	$ 3.1	$ 0	$ 0.4	$ 6.2
Minority share equity investment commitment											1.6	3.3
Cash paid for cost method investment								1.7
Investment in supplier sold amount							1.3
Carry amount of investment									2.0	3.3
Potential aggregate stock or cash payment													$ 8.3	£ 5.0	$ 8.3	£ 5.0	$ 16.6	£ 10.0	$ 12.5	£ 7.5

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Commitments To Purchase Or Fund Investments

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.12)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



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-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=16385135&loc=d3e33749-111570

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Amount of the entity's equity method investment which has been sold.

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Amount of cash paid to purchase other assets as part of operating activities.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 25

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585



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-Section 45

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The cash outflow for securities or other assets acquired, which qualify for treatment as an investing activity and are to be liquidated, if necessary, beyond the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the long-term.

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The amount the entity has committed to make for future royalty guarantees.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 928

-SubTopic 440

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6473578&loc=d3e63223-108013

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