Long-Term Incentive Plan (Tables)

3 Months Ended

Mar. 31, 2012

Long-Term Incentive Plan [Abstract]

Equity-Based Incentive Compensation Expense

		Three Months Ended
			March 31, 2011
		Equity		Liability
		Method		Method		Total
2009 awards	$	927	$	622	$	1,549
2010 awards		950		354		1,304
2011 awards		562		145		707
Retention awards		190		—		190
Total	$	2,629	$	1,121	$	3,750
Allocation of LTIP expense on our consolidated statements of income:
G&A expense					$	3,657
Operating expense						93
Total					$	3,750

		Three Months Ended
			March 31, 2012
		Equity		Liability
		Method		Method		Total
2010 awards	$	522	$	408	$	930
2011 awards		743		273		1,016
2012 awards		561		151		712
Retention awards		185		—		185
Total	$	2,011	$	832	$	2,843
Allocation of LTIP expense on our consolidated statements of income:
G&A expense					$	2,505
Operating expense						338
Total					$	2,843