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Shareholders' Equity (Tables)
 12 Months Ended
Dec. 31, 2012
Equity [Abstract]  
Stock-Based Compensation Costs
The impact of stock-based compensation expense on our results of operations during 2012, 2011 and 2010 was as follows (in thousands):

Year Ended December 31,

2012
 
2011
 
2010
Cost of revenue
$
252

 
$
252

 
$
252

Selling, general and administrative
6,532

 
10,687

 
8,317

Total
$
6,784

 
$
10,939

 
$
8,569
Fair Value Assumptions Used For Stock Options Grants
The weighted averages of the assumptions used to determine the fair value of employee stock options granted during 2012, 2011 and 2010 were as follows:
Employee stock option grants
2012
 
2011
 
2010
Fair value assumptions:
 
 
 
 
 
Expected life in years
5.71

 
5.14

 
5.08

Expected volatility
51.00
%
 
43.65
%
 
42.72
%
Expected dividend yield
0.00
%
 
0.00
%
 
0.00
%
Risk-free interest rate
0.89
%
 
1.45
%
 
2.06
%
Schedule of Assumptions Used
The weighted averages of the assumptions used to determine the fair value of director stock option awards in 2011 and 2010 were as follows:
Director stock option grants
 
2011
 
2010
Fair value assumptions:
 
 
 
 
Expected life in years
 
4.99

 
6.51

Expected volatility
 
43.34
%
 
44.29
%
Expected dividend yield
 
0.00
%
 
0.00
%
Risk-free interest rate
 
0.19
%
 
2.08
%
Summary Of Outstanding Options
The following table summarizes the stock option activity for the year ended December 31, 2012:
Stock options
Number of
Shares
 
  Weighted  
Average
Exercise
Price Per
Share
 
Weighted
Average
Remaining
  Contractual  
Term
(in years)
 
  Aggregate  
Intrinsic
Value1
(in thousands)
Outstanding at December 31, 2011
4,320,803

 
$
16.04

 
 
 
 
Granted
621,605

 
5.78

 
 
 
 
Exercised
(9,427
)
 
7.67

 
 
 
 
Forfeited
(425,342
)
 
13.63

 
 
 
 
Expired
(600,929
)
 
19.63

 
 
 
 
Outstanding at December 31, 2012
3,906,710

 
$
14.14

 
6.27
 
$
3,000,993

 
 
 
 
 
 
 
 
Vested and expected to vest at December 31, 2012
3,906,710

 
$
14.14

 
6.27
 
$
3,000,993

 
 
 
 
 
 
 
 
Exercisable at December 31, 2012
2,502,908

 
$
16.98

 
6.28
 
$
434,726

1 The aggregate intrinsic value in the table above is the amount by which the market value of the underlying stock exceeded the exercise price of outstanding options, before applicable income taxes; and represents the amount the option holder would have realized if all in-the-money options had been exercised on the last business day of the period indicated.
Changes In Non-Vested Restricted Stock Awards And Non-Vested Shared Performance Stock Awards
The following table summarizes changes in nonvested restricted stock and performance share units:
Restricted stock units
Number of
Shares
 
Weighted
Average Grant
Date Fair Value
Nonvested balance at December 31, 2011
760,627

 
11.73

Granted
1,137,148

 
6.78

Vested
(364,111
)
 
9.91

Forfeited
(228,129
)
 
10.90

Nonvested balance at December 31, 2012
1,305,535

 
7.72

 
 
 
 
Performance share units
 
 
 
Nonvested balance at December 31, 2011
506,267

 
13.98

Granted
129,564

 
7.73

Vested
(2,313
)
 
14.76

Forfeited
(557,622
)
 
10.60

Nonvested balance at December 31, 2012
75,896

 
10.84
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Total Fair Value
The fair value of vested RSU and PSU shares during the years 2012, 2011 and 2010 was as follows (in thousands):
 
2012
 
2011
 
2010
Total fair value of restricted stock units vested
$
1,676

 
$
2,804

 
$
749

Total fair value of performance share units vested
$
34

 
$
—

 
$
—
Shares Used For Computing Basic And Diluted Loss Per Share
Shares used for computing basic and diluted loss per share were computed as follows for the years ended December 31, 2012, 2011 and 2010 (in thousands, except per share data):
 
2012
 
2011
 
2010
Net loss
$
(282,503
)
 
$
(30,757
)
 
$
(5,325
)
 
 
 
 
 
 
Weighted-average common shares outstanding - basic
60,324

 
60,098

 
61,364

Dilutive effect of nonvested restricted shares and stock options
—

 
—

 
—

Weighted-average shares outstanding - diluted
60,324

 
60,098

 
61,364

 
 
 
 
 
 
Loss per share:
 
 
 
 
 
Basic
$
(4.68
)
 
$
(0.51
)
 
$
(0.09
)
Diluted
$
(4.68
)
 
$
(0.51
)
 
$
(0.09
)
Schedule of Accumulated Other Comprehensive Income (Loss)
At December 31, 2012 and 2011, the changes in the balances of each component of accumulated other comprehensive loss was as follows (in thousands):
 
Foreign currency translation adjustment
 
Unrealized gain (loss) on investments, net of tax
 
Unamortized benefit plan costs, net of tax
 
Accumulated
Other
Comprehensive
Income (Loss)
Balance, December 31, 2009
$
3,900

 
$
(182
)
 
$
(43,402
)
 
$
(39,684
)
 
 
 
 
 
 
 
 
Other comprehensive income (loss), net of tax
(2,610
)
 
37

 
(11,860
)
 
(14,433
)
Balance, December 31, 2010
1,290

 
(145
)
 
(55,262
)
 
(54,117
)
 
 
 
 
 
 
 
 
Other comprehensive loss, net of tax
(5,967
)
 
(34
)
 
(19,359
)
 
(25,360
)
Balance, December 31, 2011
(4,677
)
 
(179
)
 
(74,621
)
 
(79,477
)
 
 
 
 
 
 
 
 
Other comprehensive income (loss), net of tax
1,873

 
38

 
(9,378
)
 
(7,467
)
Balance, December 31, 2012
$
(2,804
)
 
$
(141
)
 
$
(83,999
)
 
$
(86,944
)
Schedule of Comprehensive Income (Loss)
The before-tax amount, income tax (provision) benefit, and net-of-tax amount related to each component of other comprehensive loss during the reporting periods were as follows (in thousands):
 
Year Ended December 31,

2012
 
2011
 
2010
Before-tax amount:
 
 
 
 
 
Foreign currency translation adjustments
$
1,873

 
$
(5,967
)
 
$
(2,610
)
Unrealized gain (loss) on investments
57

 
(54
)
 
58

Amortization of benefit plan costs
(9,378
)
 
(30,524
)
 
(18,419
)
Total other comprehensive loss, before tax
(7,448
)
 
(36,545
)
 
(20,971
)
 
 
 
 
 
 
Tax (provision) benefit:
 
 
 
 
 
Foreign currency translation adjustments
—

 
—

 
—

Unrealized gain (loss) on investments
(19
)
 
20

 
(21
)
Amortization of benefit plan costs
—

 
11,165

 
6,559

Total other comprehensive loss, tax (provision) benefit
(19
)
 
11,185

 
6,538

 
 
 
 
 
 
Net-of-tax amount:
 
 
 
 
 
Foreign currency translation adjustments
1,873

 
(5,967
)
 
(2,610
)
Unrealized gain (loss) on investments
38

 
(34
)
 
37

Amortization of benefit plan costs
(9,378
)
 
(19,359
)
 
(11,860
)
Total other comprehensive loss, net of tax
$
(7,467
)
 
$
(25,360
)
 
$
(14,433
)