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Stock-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2013
Stock Plans [Abstract]  
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs
The following table shows stock-based compensation expense included in the Consolidated Statements of Income:
 
Years Ended December 31,
 
2013
 
2012
 
2011
Cost of equipment sales
$
886

 
$
1,212

 
$
1,292

Cost of support services
382

 
522

 
557

Cost of business services
527

 
721

 
770

Selling, general and administrative
11,099

 
15,176

 
15,689

Research and development
435

 
596

 
640

Discontinued operations (1)
1,592

 
—

 
—

Stock-based compensation expense
14,921

 
18,227

 
18,948

Tax benefit
(5,759
)
 
(6,061
)
 
(6,170
)
Stock-based compensation expense, net of tax
$
9,162

 
$
12,166

 
$
12,778
Schedule of Share-based Compensation, Restricted Stock Units Award Activity
The following table summarizes information about restricted stock units during 2013 and 2012:
 
2013
 
2012
 
Shares
 
Weighted average grant date fair value
 
Shares
 
Weighted average grant date fair value
Restricted stock units outstanding at beginning of the year
1,909,160

 
$
17.68

 
1,629,055

 
$
22.33

Granted
1,365,798

 
10.37

 
999,381

 
14.72

Vested
(1,049,572
)
 
17.52

 
(598,543
)
 
22.27

Forfeited
(284,074
)
 
13.33

 
(120,733
)
 
18.75

Restricted stock units outstanding at end of the year
1,941,312

 
$
13.19

 
1,909,160

 
$
17.68

The following table summarizes information about market stock units during 2013 and 2012:
 
2013
 
2012
 
Shares
 
Weighted average grant date fair value
 
Shares
 
Weighted average grant date fair value
Market stock units outstanding at beginning of the year
198,145

 
$
17.91

 
—

 
$
—

Granted
—

 
—

 
205,013

 
17.91

Forfeited
(9,718
)
 
17.91

 
(6,868
)
 
17.91

Market stock units outstanding at the end of the year
188,427

 
$
17.91

 
198,145

 
$
17.91
Schedule of Share-based Compensation, Stock Options, Activity
The following table summarizes information about stock option activity during 2013 and 2012:
 
2013
 
2012
 
Shares
 
Per share weighted average exercise prices
 
Shares
 
Per share weighted average exercise prices
Options outstanding at beginning of the year
13,653,245

 
$
35.28

 
14,471,464

 
$
36.42

Granted
800,000

 
21.93

 
600,000

 
15.71

Exercised
(35,461
)
 
22.09

 
—

 
—

Canceled
(628,731
)
 
32.93

 
(525,361
)
 
36.15

Expired
(1,392,159
)
 
32.39

 
(892,858
)
 
40.20

Options outstanding at the end of the year
12,396,894

 
$
34.90

 
13,653,245

 
$
35.28

Options exercisable at the end of the year
10,864,753

 
$
36.84

 
11,762,341

 
$
37.44
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range
The following table summarizes information about stock options outstanding and exercisable at December 31, 2013:
 
 
Options Outstanding
 
Options Exercisable
Range of per share exercise prices
 
Shares
 
Per share weighted-average exercise price
 
Weighted-average remaining contractual life
 
Shares
 
Per share weighted-average exercise price
 
Weighted-average remaining contractual life
$13.39 - $22.99
 
2,401,807

 
$
20.32

 
7.6 years
 
1,411,807

 
$
21.42

 
6.6 years
$23.00 - $30.99
 
2,462,402

 
25.32

 
6.3 years
 
1,920,261

 
25.28

 
5.9 years
$31.00 - $38.99
 
1,535,814

 
36.86

 
4.1 years
 
1,535,814

 
36.86

 
4.1 years
$39.00 - $48.03
 
5,996,871

 
44.16

 
1.4 years
 
5,996,871

 
44.16

 
1.4 years
 
 
12,396,894

 
$
34.90

 
3.9 years
 
10,864,753

 
$
36.84

 
3.3 years
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
The fair value of stock options granted during the year was determined using the following assumptions:
 
Years Ended December 31,
 
2013
 
2012
 
2011
Expected dividend yield
7.7
%
 
9.3
%
 
6.1
%
Expected stock price volatility
29.5
%
 
30.0
%
 
26.1
%
Risk-free interest rate
1.8
%
 
1.2
%
 
3.3
%
Expected life
7.9 years

 
7.9 years

 
7.4 years

Weighted-average fair value per option granted
$0.88
 
$0.48
 
$3.45