XML 15 R54.htm IDEA: XBRL DOCUMENT

STOCK-BASED COMPENSATION PLANS (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
STOCK-BASED COMPENSATION PLANS
Compensation expense	$ 5,464	$ 5,229
Stock options \| Property management and other costs
STOCK-BASED COMPENSATION PLANS
Compensation expense	1,229	933
Stock options \| General and administrative
STOCK-BASED COMPENSATION PLANS
Compensation expense	2,000	1,164
Restricted Stock \| Property management and other costs
STOCK-BASED COMPENSATION PLANS
Compensation expense	426	582
Restricted Stock \| General and administrative
STOCK-BASED COMPENSATION PLANS
Compensation expense	$ 1,809	$ 2,550

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References+ Details