XML 32 R81.htm IDEA: XBRL DOCUMENT v2.4.0.8
Share and Unit-Based Plans: (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 12 Months Ended 0 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
employee
Dec. 31, 2010
Dec. 31, 2013
2003 Equity Incentive Plan
Dec. 31, 2013
Director's Phantom Stock Plan
Dec. 31, 2013
Employee Stock Purchase Plan
Dec. 31, 2013
Stock awards
Dec. 31, 2012
Stock awards
Dec. 31, 2011
Stock awards
Feb. 11, 2013
LTIP Units
Jan. 16, 2013
LTIP Units
Feb. 07, 2012
LTIP Units
Dec. 31, 2013
LTIP Units
Dec. 31, 2012
LTIP Units
Dec. 31, 2011
LTIP Units
Feb. 15, 2013
LTIP Units
Executive Officer
employee
Aug. 31, 2012
LTIP Units
Executive Officer
Apr. 16, 2012
LTIP Units
Executive Officer
Feb. 23, 2012
LTIP Units
Executive Officer
employee
Feb. 07, 2012
LTIP Units
Executive Officer
Feb. 28, 2011
LTIP Units
Executive Officer
employee
Dec. 31, 2013
Stock units
Dec. 31, 2013
Stock units
Dec. 31, 2012
Stock units
Dec. 31, 2011
Stock units
Dec. 31, 2013
Stock options
Dec. 31, 2012
Stock options
Dec. 31, 2011
Stock options
Dec. 31, 2013
Stock appreciation rights (SARs)
Dec. 31, 2012
Stock appreciation rights (SARs)
Dec. 31, 2011
Stock appreciation rights (SARs)
Dec. 31, 2013
Phantom stock units
Dec. 31, 2012
Phantom stock units
Dec. 31, 2011
Phantom stock units
Dec. 31, 2013
Stock awards and units
Dec. 31, 2012
Stock awards and units
Dec. 31, 2011
Stock awards and units
Dec. 31, 2013
SARS granted prior to 2012
Share and unit-based plans                                                                              
Term of award (in years)         10 years                                                 10 years                  
Maximum shares authorized under plan (in shares)         13,825,428 500,000 750,000                                                                
Shares available for issuance under plan (in shares)         5,701,863 223,694 565,325                                                                
Number of common shares into which units can be converted (in shares)           1               1                 1 1                 1            
Number of awards with modified terms due to separation agreement                   2,281         20,000                     61,570         54,405 43,204              
Additional compensation cost from modified terms of awards due to employee separations   $ 1,214 $ 3,333                                                                        
Compensation cost under share and unit-based plans 28,122 14,970 18,836         497 598 749       22,778 9,436 8,955               3,839 3,379 7,526 16 21 0 0 583 626 992 953 980        
Capitalized share and unit-based compensation costs 3,915 2,646   6,231                                                                      
Deferral period for grant of units           3 years                                                                  
Number of employees reduced     6                                                                        
Number of executives receiving grants                                 7     4   4                                  
Discount from market price (as a percent)             15.00%                                                                
Award activity, Shares or Units                                                                              
Balance at the beginning of the period (in shares)               20,924 21,130 63,351       200,000 190,000 272,226             114,677 114,677 576,340 1,038,549             0 15,745 29,783        
Balance at the beginning of the period (in shares)                                                           1,164,185 1,156,985 1,242,314              
Granted (in shares)               8,963 9,639 11,350       332,189 315,000 422,631   20,000 10,000 190,000 95,000 190,000 67,920 67,920 72,322 64,463       0 39,932 0 34,266 7,896 10,534        
Vested (in shares)               (10,886) (9,845) (53,571)   (318,900)   (518,900) (305,000) (504,857)             (45,279) (45,279) (533,985) (519,272)             (16,691) (22,179) (24,572)        
Exercised (in shares)                                                           (93,194) (32,732) 0              
Forfeited (in shares)               0 0 0   (13,289)   (13,289) 0 0             0 0 0 (7,400)       0 0 (85,329) 0 (1,462) 0        
Balance at the end of the period (in shares)               19,001 20,924 21,130       0 200,000 190,000             137,318 137,318 114,677 576,340             17,575 0 15,745        
Balance at the end of the period (in shares)                                                           1,070,991 1,164,185 1,156,985              
Award activity, Weighted Average Grant Date Fair Value                                                                              
Balance at the beginning of the period (in dollars per share)               $ 49.36 $ 40.68 $ 53.69       $ 38.63 $ 43.30 $ 50.68             $ 52.19 $ 52.19 $ 11.71 $ 7.17             $ 0.00 $ 34.84 $ 34.18        
Granted (in dollars per share)               $ 61.84 $ 54.43 $ 48.47       $ 66.58 $ 40.53 $ 46.48   $ 59.57 $ 54.97 $ 37.77   $ 43.30   $ 62.01 $ 54.43 $ 48.36             $ 59.04 $ 57.29 $ 48.51        
Vested (in dollars per share)               $ 46.70 $ 35.69 $ 57.36       $ 55.81 $ 44.85 $ 49.85               $ 51.59 $ 8.80 $ 7.17             $ 59.44 $ 45.24 $ 39.89        
Forfeited (in dollars per share)               $ 0.00 $ 0.00 $ 0.00       $ 66.58 $ 0.00 $ 0.00               $ 0.00 $ 0.00 $ 12.35             $ 0.00 $ 33.74 $ 0.00        
Balance at the end of the period (in dollars per share)               $ 56.77 $ 49.36 $ 40.68       $ 0.00 $ 38.63 $ 43.30             $ 57.24 $ 57.24 $ 52.19 $ 11.71             $ 58.66 $ 0.00 $ 34.84        
Level of percentile ranking at which awards vested (as a percent)                     100.00% 96.00% 150.00%                                                    
Award Activity, Weighted Average Exercise Price                                                                              
Balance at the beginning of the period (in dollars per share)                                                           $ 56.66 $ 56.55 $ 56.56              
Granted (in dollars per share)                                                           $ 0.00 $ 59.57 $ 0.00              
Exercised (in dollars per share)                                                           $ 56.63 $ 56.63 $ 0.00              
Forfeited (in dollars per share)                                                           $ 0.00 $ 0.00 $ 56.63              
Balance at the end of the period (in dollars per share)                                                           $ 56.66 $ 56.66 $ 56.55              
Options                                                                              
Balance at beginning of period (in shares)                                                     12,768 2,700 110,711                    
Granted (in shares)                                                     0 10,068 0                    
Exercised (in shares)                                                     (2,700) 0 0                    
Forfeited (in shares) 0 0 (108,011)                                                                        
Balance at end of period (in shares)                                                     10,068 12,768 2,700                    
Weighted Average Exercise Price                                                                              
Balance at beginning of period (in dollars per share)                                                     $ 54.69 $ 36.51 $ 75.08                    
Granted (in dollars per share)                                                     $ 0.00 $ 59.57 $ 0.00                    
Exercised (in dollars per share)                                                     $ 36.51 $ 0.00 $ 0.00                    
Forfeited (in dollars per share) $ 0.00 $ 0.00 $ 76.05                                                                        
Balance at end of period (in dollars per share)                                                     $ 59.57 $ 54.69 $ 36.51                    
Share and unit-based plans, additional information                                                                              
Unrecognized compensation cost of share and unit-based plans               765                             2,976 2,976     59           1,031            
Fair value assumptions                                                                              
Volatility rate (as a percent)                                                     25.85%     25.85%                 22.52%
Dividend yield (as a percent)                                                     3.69%     3.69%                 5.23%
Risk free rate (as a percent)                                                     1.20%     1.20%                 3.15%
Current value (in dollars per share)                                                     $ 59.57     $ 59.57                 $ 61.17
Expected term                                                     8 years     8 years                 8 years
Fair value of equity-based awards vested during period                                                                       $ 3,516 $ 30,454 $ 27,160  
Grant date of award (in dollars per share)                                                     $ 9.67     $ 9.67                 $ 7.68