STOCK OPTIONS AND STOCK AWARDS (Tables)

6 Months Ended

Jun. 30, 2013

STOCK OPTIONS AND STOCK AWARDS

Summary of stock option activity

	Six Months Ended June 30, 2013
					Weighted
			Weighted		average
			average		remaining	Aggregate
			exercise		contractual	intrinsic
Stock options	Shares		price		life (in years)	value
Options outstanding:
Outstanding at December 31, 2012	6,626,176		$	22.50
Granted	1,106,309		17.56
Exercised	(4,600	)	14.14
Forfeited	(208,090	)	26.01
Outstanding at June 30, 2013	7,519,795		21.68		7.19	$	5,243
Exercisable at June 30, 2013	3,995,439		23.35		5.85	4,948

Summary of restricted stock activity

			Weighted
			average
			grant-date
	Shares		fair value
Nonvested at December 31, 2012	48,700		$	23.76
Issued	10,000		14.37
Vested	(34,490	)	24.16
Cancelled	(250	)	24.62
Nonvested at June 30, 2013	23,960		19.27

Schedule of weighted-average assumptions used to estimate the fair value of options granted using the Black-Scholes model

	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
Weighted average assumptions:
Expected life of options (in years)	6.33		6.34		6.27		6.26
Risk-free interest rate	1.26	%	0.97	%	1.17	%	1.04	%
Expected volatility	48.17	%	50.24	%	48.83	%	50.74	%
Expected dividend yield	0.00	%	0.00	%	0.00	%	0.00	%