v2.4.0.6

FAIR VALUE MEASUREMENTS (Details 2) (USD $)			3 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Mar. 31, 2011 Auction rate securities security	Dec. 31, 2011 Auction rate securities	Dec. 31, 2010 Auction rate securities	Dec. 31, 2011 Contingent Consideration Arrangement	Dec. 31, 2009 Derivative asset - Contingent Value Right
Changes in assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Balance at the beginning of the period, assets			$ 13,100,000	$ 13,100,000	$ 12,635,000
Total net (losses) gains (realized and unrealized) included in other comprehensive income, assets				(2,230,000)	465,000
Settlements, assets				(5,000,000)
Balance at the end of the period, assets				5,870,000	13,100,000
Changes in liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Fair value at date of acquisition, liabilities						(40,000,000)
Settlements, liabilities						30,000,000
Balance at the end of the period, liabilities						(10,000,000)
Auction rate securities
Number of auction rate securities redeemed			1
Redeemed at par value			5,000,000
Cost basis				10,000,000	15,000,000
Gross unrealized losses	37,000	246,000		4,100,000	1,900,000
Loss included in earnings							$ 57,200,000

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- Definition

The number of securities held, which were categorized neither as trading nor held-to-maturity, and for which the interest rate was reset through an auction process, that failed to be liquidated and were sold at par value during the period.

+ References

No definition available.

+ Details

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- Definition

This element represents the fair value of liabilities on the date of acquisition that have taken place during the period in relation to liabilities measured at fair value and categorized within Level 3 of the fair value hierarchy.

+ References

No definition available.

+ Details

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- Definition

This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

No definition available.

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- Definition

This item represents the gross unrealized losses for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.

+ References

No definition available.

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- Definition

The aggregate value of securities held, which were categorized neither as trading nor held-to-maturity, for which the interest rate reset through an auction process, that failed to be liquidated through auction, and which were sold at par value during the period.

+ References

No definition available.

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- Definition

This element represents total gains or losses for the period (realized and unrealized), arising from assets measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in earnings or resulted in a change in net asset value.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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- Definition

This element represents total gains or losses for the period (realized and unrealized), arising from assets measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in other comprehensive income (a separate component of shareholders' equity).

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

-Subparagraph c(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Settlements that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy.

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- Definition

This element represents an asset measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

-Subparagraph c

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Settlements that have taken place during the period in relation to liabilities measured at fair value and categorized within Level 3 of the fair value hierarchy.

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-Name Accounting Standards Codification

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This element represents a liability measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances.

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