Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2011

Summary of Share-Based Compensation Expense

The following table summarizes the share-based compensation expense for the periods presented:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2011		2010		2011		2010
Stock option plans	$	1,354	$	1,319	$	4,141	$	4,704
Common, deferred and restricted stock and  restricted stock unit plans		466		392		1,488		1,696
	$	1,820	$	1,711	$	5,629	$	6,400