XML 92 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, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Total	$ 5,171	$ 3,943	$ 10,322	$ 7,950
Restricted Stock [Member]
Allocated Share-based Compensation Expense	3,836	2,407	7,451	4,858
Stock Options [Member]
Allocated Share-based Compensation Expense	$ 1,335	$ 1,536	$ 2,871	$ 3,092

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