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Earnings (Loss) Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Denominator:
Weighted-average common shares outstanding	110,358	107,613
Basic net loss per share (in dollars per share)	$ (0.25)	$ (0.04)
Denominator:
Number of shares used in diluted computation	110,358	107,613
Number of shares used in basic computation	110,358	107,613
Diluted net loss per share (in dollars per share)	$ (0.25)	$ (0.04)
CRCS
Numerator:
Allocation of undistributed earnings		$ (188)
Denominator:
Weighted-average common shares outstanding		4,788
Basic net loss per share (in dollars per share)		$ (0.04)
Numerator:
Allocation of undistributed earnings for diluted computation		(188)
Allocation of undistributed earnings for basic computation		(188)
Denominator:
Number of shares used in diluted computation		4,788
Number of shares used in basic computation		4,788
Diluted net loss per share (in dollars per share)		$ (0.04)
Common Stock other than CRCS
Numerator:
Allocation of undistributed earnings	(27,890)	(4,042)
Denominator:
Weighted-average common shares outstanding	110,358	102,825
Basic net loss per share (in dollars per share)	$ (0.25)	$ (0.04)
Numerator:
Allocation of undistributed earnings for diluted computation	(27,890)	(4,042)
Allocation of undistributed earnings for basic computation	$ (27,890)	$ (4,042)
Denominator:
Number of shares used in diluted computation	110,358	102,825
Number of shares used in basic computation	110,358	102,825
Diluted net loss per share (in dollars per share)	$ (0.25)	$ (0.04)

X

- Definition

The earnings attributable to each security on the basis that all of the earnings for the period had been distributed (to the extent that each security may share in earnings). This is the earnings amount which reflects the participation rights in undistributed earnings of each security.

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