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Share-Based Payments	3 Months Ended
	Mar. 31, 2012
Share-Based Payments [Abstract]
Share-Based Payments	11. Share-Based Payments During the first quarter of 2012, we cancelled 8,560 stock options previously issued under our 1999 and 2009 Long-Term Incentive Plans. Total share-based compensation expense recognized was $0.4 million for each of the three months ended March 31, 2012 and 2011, and is shown in corporate, general and administration expenses on our condensed consolidated statements of operations. On March 5, 2012, for options previously granted under our 1999 Long-Term Incentive Plan to seven employees that were scheduled to expire within the next two years, we extended the original expiration dates by two years. These modifications resulted in total incremental share-based compensation cost of approximately $0.1 million that was immediately recognizable.

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- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

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