Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2011

Transactions involving stock options under the the LTSIP

Unvested stock options decreased by 115,068 shares to 117,794 shares for the nine months of 2011. Stock-option transactions under the terms of the LTSIP are summarized below:

	Options Outstanding	Price Range	Weighted- average Price
Balance at December 31, 2010	2,560,059	$3.70 - $17.35	$7.30
Exercised	(432,700)	3.70 - 13.10	5.09
Balance at September 30, 2011	2,127,359	$3.70 - $17.35	$7.74

Transactions involving restricted shares under the terms of the LTSIP are summarized below:

	Restricted Shares Outstanding	Price Range	Weighted-average Price
Balance at December 31, 2010	568,707	$11.40 - $20.31	$14.66
Granted	348,127	17.50 - 17.97	17.96
Distributed	(133,391)	11.40 - 20.31	14.09
Forfeited	(11,893)	11.40 - 17.97	16.45
Balance at September 30, 2011	771,550	$11.40 - $17.97	$16.22

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range

Options Outstanding				Options Exercisable		Unvested Options
Range of exercise prices	Number outstanding at Sept. 30, 2011	Weighted-average remaining term in years	Weighted-average exercise price	Number exercisable at Sept. 30, 2011	Weighted-average exercise price	Number unvested at Sept. 30, 2011	Weighted- average exercise price
$3.70 - $ 4.37	1,144,985	1.0	$ 4.12	1,144,985	$ 4.12	-	$ -
7.84 - 12.43	649,174	3.2	11.17	590,177	11.15	58,997	11.40
$13.10 - $17.35	333,200	4.8	13.52	274,403	13.60	58,797	13.10
	2,127,359	2.3	$ 7.74	2,009,565	$ 7.48	117,794	$12.25