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Shareholders' Equity (Tables)
 12 Months Ended
Dec. 31, 2013
Stockholders' Equity Note [Abstract]  
Schedule of the amounts recorded in the Consolidated Statements of Operations for share-based compensation
The table below summarizes the amounts recorded in the Consolidated Statements of Operations for share-based compensation:
 
Year Ended December 31,
 
2013
 
2012
 
2011
 
(In thousands)
Share-based compensation costs — continuing operations
$
11,746

 
$
7,282

 
$
4,540

Share-based compensation costs — discontinued operations
—

 
269

 
371

Total share-based compensation costs included in consolidated net loss
$
11,746

 
$
7,551

 
$
4,911
Schedule of weighted average assumptions used to value options granted and the grant date fair value
A summary of the weighted average assumptions used to value options granted and the grant date fair value follows:
 
Year Ended December 31,
 
2012
 
2011
Expected life (in years)
4.4

 
4.2

Risk-free interest rate
0.63
%
 
1.34
%
Expected volatility
70
%
 
67
%
Dividend yield
0
%
 
0
%
Fair value
$
2.13

 
$
2.55
Schedule of stock option activity
A summary of stock option activity for 2013 is presented below:
 
Number
of
Options
 
Weighted
Average
Exercise
Price
 
Weighted
Average
Remaining
Contractual
Term
(In Years)
 
Aggregate
Intrinsic
Value
 
(In thousands, except per share amounts or as otherwise disclosed)
Outstanding at January 1, 2013
8,115

 
$
4.58

 
 
 
 
Granted
—

 
$
—

 
 
 
 
Exercised
(635
)
 
$
3.43

 
 
 
 
Expired or canceled
(1,801
)
 
$
6.00

 
 
 
 
Forfeited
(302
)
 
$
4.42

 
 
 
 
Outstanding at December 31, 2013
5,377

 
$
4.33

 
3.22
 
$
3,500

Vested and expected to vest at December 31, 2013
5,336

 
$
4.34

 
3.19
 
$
3,469

Exercisable at December 31, 2013
4,375

 
$
4.55

 
2.86
 
$
2,682
Schedule of RSU activity
A summary of RSU activity for 2013 is presented below:
 
Number
of
RSUs
 
Weighted
Average
Grant Date
Fair Value
 
(In thousands, except per share amounts)
Nonvested shares outstanding at January 1, 2013
1,685

 
$
4.43

Granted
3,244

 
$
4.12

Vested
(1,770
)
 
$
4.29

Forfeited
(410
)
 
$
4.06

Nonvested shares outstanding at December 31, 2013
2,749

 
$
4.09