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Stock-Based Compensation Expense (Tables)

6 Months Ended

Jun. 30, 2011

Summary of Stock-Based Compensation Expense


	Three Months Ended June 30,				Six Months Ended June 30,
	2011		2010		2011		2010
Stock options	$	1,207	$	1,552	$	2,500	$	3,025
Restricted common stock		70		548		288		1,114
Restricted stock units		1,427		808		2,654		1,473
Performance stock units		322		179		526		217

Total stock-based compensation expense	$	3,026	$	3,087	$	5,968	$	5,829

- Definition

Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

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