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Stock-based Compensation and Awards (Tables)

12 Months Ended

Dec. 31, 2011

Stock-based Compensation and Awards [Abstract]

Summary of stock-based compensation expense

		Years Ended December 31,
		2011				2010				2009
Stock options		$	3,916			$	5,273			$	5,673
Restricted stock, restricted stock units and phantom units			14,970				17,796				17,983
Employee stock purchase plan			278				282				935
Total stock-based compensation expense		$	19,164			$	23,351			$	24,591

Weighted average fair value at date of grant for options granted

		Years Ended December 31,
		2011				2010				2009
Expected life in years			4.5				4.5				4.5
Risk-free interest rate			1.23	%			2.13	%			1.84	%
Volatility			45.17	%			42.94	%			40.51	%
Dividend yield			0.0	%			0.0	%			0.0	%

Summary of stock option activity

		Stock Options				Weighted Average Exercise Price				Weighted Average Remaining Life				Aggregate Intrinsic Value
Options outstanding, December 31, 2010			3,124			$	31.20
Granted			924				15.33
Exercised			(33	)			16.16
Cancelled			(744	)			28.90
Options outstanding, December 31, 2011			3,271				27.39				4.1			$	—
Options exercisable, December 31, 2011			2,029				34.20				2.9				—

Schedule of restricted stock and restricted stock unit activity

		Shares				Weighted Average Grant-Date Fair Value Per Share
Non-vested restricted stock and restricted stock units, December 31, 2010			1,421			$	23.20
Granted			1,212				19.22
Vested			(743	)			25.36
Cancelled			(220	)			22.11
Non-vested restricted stock and restricted stock units, December 31, 2011			1,670				19.49

Schedule of phantom unit activity

		Phantom Units				Weighted Average Grant-Date Fair Value per Unit
Phantom units outstanding, December 31, 2010			98,537			$	19.23
Granted			49,082				24.70
Vested			(67,026	)			20.47
Cancelled			(5,326	)			22.56
Phantom units outstanding, December 31, 2011			75,267				21.45

X

- Definition

Tabular disclosure of the number and weighted-average grant-date fair value for phantom units that were outstanding at the beginning and end of the year, granted, vested, forfeited or expired during the year.

+ References

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Tabular disclosure of the number and weighted-average grant-date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, granted, vested, forfeited or expired during the year.

+ References

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- Definition

Share based compensation arrangement by share based payment award fair value assumptions and methodology.

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- Definition

Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits.

+ References

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

-Topic 718

-SubTopic 10

-Publisher FASB

-Number

-Article

-Subparagraph (h)(1)

-Name Accounting Standards Codification

-Paragraph 2

-Section 50

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

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

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-SubTopic 10

-Publisher FASB

-Number

-Article

-Subparagraph (c)(1)

-Name Accounting Standards Codification

-Paragraph 2

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