The level of ownership or equity interest acquired in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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The number of shares issued as [noncash or part noncash] consideration for a business or asset acquired. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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- Definition

The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

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Ester Asset Purchase - Additional Information (Detail) (USD $)	12 Months Ended			1 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Aug. 31, 2009 Ester Asset Purchase	Dec. 31, 2008 Ester Asset Purchase	Dec. 31, 2007 Ester Asset Purchase	Dec. 31, 2009 Ester Asset Purchase	Dec. 01, 2007 Ester Asset Purchase
Noncash or Part Noncash Acquisitions [Line Items]
Asset Purchase, percentage of outstanding share capital acquired						100.00%
Asset purchase, upfront payment						$ 5,200,000
Asset purchase, common stock given						10,000,000
Asset purchase, Fair value of common stock issued				1,800,000		9,000,000
Asset purchase, maximum variable contingent payment amount						5,000,000
Asset purchase, fair value of stock based liability					900,000	3,400,000	900,000	4,800,000
Compensation (income) expense	$ 9,294,000	$ 5,207,000	$ 2,859,000	$ 900,000	$ (2,500,000)	$ (1,400,000)
Asset purchase, Common shares issued in settlement of stock based liability				1,315,789