XML 32 R44.htm IDEA: XBRL DOCUMENT

Stock-Based Compensation (Detail) - (Table 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Total	$ 3,943	$ 3,040	$ 7,950	$ 5,565
Restricted Stock [Member]
Allocated Share-based Compensation Expense	2,407	1,420	4,858	2,608
Stock Options [Member]
Allocated Share-based Compensation Expense	$ 1,536	$ 1,620	$ 3,092	$ 2,957

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