Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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+ Details

Earnings Per Share ("EPS"): (Details 2)	12 Months Ended
Earnings Per Share ("EPS"): (Details 2)	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Convertible preferred units
Antidilutive securities
Antidilutive securities (in shares)	193,945	208,640	208,640
Stock appreciation rights ("SARs")
Antidilutive securities
Antidilutive securities (in shares)		1,203,280	1,150,172
Stock options
Antidilutive securities
Antidilutive securities (in shares)		94,685	122,500
Warrants
Antidilutive securities
Antidilutive securities (in shares)		933,650	935,358
Partnership unit
Antidilutive securities
Antidilutive securities (in shares)	10,870,454	11,356,922	11,596,953