STOCK-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2012

Total Stock-Based Compensation Expense Recognized

Total compensation expense recognized for the years ended December 31, 2012, 2011 and 2010 was as follows:

	December 31,
	2012		2011		2010
	(In thousands)
Stock options	$	3,984	$	3,845	$	1,724
Restricted stock awards and units		6,880		11,939		11,920
Performance and deferred stock units		4,505		2,041		2,814
Total	$	15,369	$	17,825	$	16,458

Total Gross Unrecognized Estimated Compensation Expense and Expected Weighted-Average Periods

The components of the total gross unrecognized estimated compensation expense and their expected remaining weighted-average periods for expense recognition are as follows (amounts in millions; periods in years):

	Amount		Weighted- Average Period
Stock options	$	5.5		1.8
Restricted stock awards	$	9.4		2.1
Performance shares	$	9.6		1.8

Weighted Average Assumptions

The fair value of each option grant was estimated with the following weighted-average assumptions:

	Year Ended December 31,
	2012			2011			2010
Risk-free interest rate		0.77	%		2.26	%		2.12	%
Expected volatility		59	%		41	%		54	%
Expected life of the option in years		4.60			4.60			4.64
Expected dividend yield		0.0	%		0.0	%		0.0	%

Activity for Stock Option

The following table summarizes activity for our stock options for the year ended December 31, 2012 (share data in thousands):

	Number of Option Shares			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term		Aggregate Intrinsic Value (in millions)
Outstanding at beginning of period		2,263		$	10.96
Granted		760			14.33
Exercised		(215	)		4.42
Cancelled/expired/forfeited		(80	)		16.90
Outstanding at end of period(1)		2,728		$	12.24		4.2 Years	$	5.4
Exercisable at end of period		1,581		$	9.19		1.9 Years	$	5.4

(1) Of the remaining shares subject to outstanding options, we expect approximately 1.1 million shares to vest at a weighted-average exercise price of $16.45.

Nonvested Restricted Stock Awards and Changes

Nonvested restricted stock awards and changes during the year ended December 31, 2012 were as follows (share data in thousands):

	Number of Shares			Weighted- Average Grant Date Fair Value
Nonvested at beginning of period		1,038		$	13.02
Granted		764			13.16
Vested		(811	)		11.00
Cancelled/forfeited		(73	)		14.99
Nonvested at end of period		918		$	14.80

Nonvested Performance Shares and Performance Unit Awards and Changes

Nonvested performance share awards and changes during the year ended December 31, 2012 were as follows (share data in thousands):

	Number of Shares			Weighted- Average Grant Date Fair Value
Nonvested at beginning of period		188		$	41.96
Granted		371			22.92
Vested		—			—
Cancelled/forfeited		(31	)		32.58
Nonvested at end of period		528		$	29.19