v2.4.0.6
Long-term Equity-based Compensation Plans (Tables)
3 Months Ended
Mar. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
The assumptions used in the Black-Scholes pricing model for options granted during the three months ended March 31, 2012 and 2011 were as follows:
 
Three Months Ended
 
Mar 31, 2012
 
Mar 31, 2011
Range of Valuation Assumptions
 
 
 
 
 
 
 
Expected Volatility
29.36
%
-
53.84
%
 
41.34
%
-
55.16
%
Risk-free Interest Rate
0.16

-
1.26

 
1.30

-
2.87

Expected Dividend Yield
3.17

-
3.26

 
3.38

-
3.38

Weighted-Average Expected Life in Years
 

 
 
 
 

 
 
Employee Grants
1.0

-
7.0

 
3.5

-
7.0

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]
Option and stock appreciation right activity for the three months ended March 31, 2012 is presented below:
 
Shares Subject
to Options
 
Weighted-
Average
Exercise Price
Per Share ($)
 
Weighted-
Average
Remaining
Contractual Life
(in Years)
 
Aggregate
Intrinsic Value
($ in Millions)
Outstanding at Beginning of the Year
3,632,398

 
$
40.70

 
 
 
 
Granted
229,451

 
29.77

 
 
 
 
Exercised
(6,250
)
 
17.36

 
 
 
 
Forfeited or Expired
(20,500
)
 
43.64

 
 
 
 
Outstanding at March 31, 2012
3,835,099

 
$
40.07

 
4.33

 
$
6.7

Vested and Expected to Vest at March 31, 2012
3,790,666

 
$
40.22

 
4.28

 
$
6.6

Exercisable at March 31, 2012
3,119,209

 
$
43.20

 
3.30

 
$
3.9

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]
Information pertaining to options and stock appreciation rights outstanding at March 31, 2012 is presented below:
 
 
 
 
Outstanding
 
Exercisable
Range of Exercise Prices
 
Shares
Subject to
Options
 
Weighted-
Average
Exercise Price
Per Share ($)
 
Weighted-
Average
Remaining
Contractual
Life (in Years)
 
Shares
Subject to
Options
 
Weighted-
Average
Exercise Price
Per Share ($)
$
10.00

-
$
15.00

 
204,500

 
$
13.55

 
6.85

 
152,249

 
$
13.55

15.01

-
20.00

 
8,000

 
16.48

 
7.10

 
8,000

 
16.48

20.01

-
25.00

 
313,750

 
23.74

 
8.02

 
118,875

 
23.63

25.01

-
30.00

 
612,949

 
28.45

 
8.61

 
144,636

 
26.82

30.01

-
35.00

 
2,614

 
31.18

 
0.85

 
2,163

 
31.34

35.01

-
40.00

 
341,577

 
37.25

 
5.70

 
341,577

 
37.25

40.01

-
45.00

 
489,363

 
43.33

 
1.92

 
489,363

 
43.33

45.01

-
50.00

 
1,369,021

 
48.68

 
2.82

 
1,369,021

 
48.68

50.01

-
55.00

 
493,325

 
51.12

 
1.25

 
493,325

 
51.12

10.00

-
55.00

 
3,835,099

 
40.07

 
4.33

 
3,119,209

 
43.20

Performance-Based Restricted Stock [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]
Activity related to nonvested performance-based restricted stock for the three months ended March 31, 2012 was as follows:
 
Performance-Based Restricted
Shares
 
Weighted-
Average
Grant-Date
Fair Value
Per Share
Nonvested Balance at Beginning of the Year
172,875

 
$
29.86

Granted
68,575

 
36.65

Vested
(51,596
)
 
14.04

Forfeited
(1,054
)
 
26.79

Nonvested Balance at End of Period
188,800

 
$
36.67

Time-Based Restricted Stock [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]
Activity related to nonvested time-based restricted stock for the three months ended March 31, 2012 was as follows:
 
Time-Based Restricted
Shares
 
Weighted-
Average
Grant-Date
Fair Value
Per Share
Nonvested Balance at Beginning of the Year
116,784

 
$
23.33

Granted
57,625

 
29.71

Vested
(6,500
)
 
25.12

Forfeited
(12,371
)
 
25.74

Nonvested Balance at End of Period
155,538

 
$
25.43