XML 75 R64.htm IDEA: XBRL DOCUMENT v3.7.0.1
Share and Unit-Based Plans - Nonvested Equity Awards (Details)
 3 Months Ended
Mar. 31, 2017
$ / shares
shares
LTIP Units  
Units  
Balance at beginning of period (in shares) | shares 322,572
Granted (in shares) | shares 498,670
Vested (in shares) | shares (134,742)
Forfeited (in shares) | shares 0
Balance at end of period (in shares) | shares 686,500
Value  
Balance at beginning of period (in dollars per share) | $ / shares $ 58.18
Granted (in dollars per share) | $ / shares 55.54
Vested (in dollars per share) | $ / shares 66.57
Forfeited (in dollars per share) | $ / shares 0.00
Balance at end of period (in dollars per share) | $ / shares $ 54.61
Phantom Stock Units  
Units  
Balance at beginning of period (in shares) | shares 5,845
Granted (in shares) | shares 5,217
Vested (in shares) | shares (2,494)
Forfeited (in shares) | shares 0
Balance at end of period (in shares) | shares 8,568
Value  
Balance at beginning of period (in dollars per share) | $ / shares $ 81.47
Granted (in dollars per share) | $ / shares 75.89
Vested (in dollars per share) | $ / shares 87.90
Forfeited (in dollars per share) | $ / shares 0.00
Balance at end of period (in dollars per share) | $ / shares $ 76.20
Stock Units  
Units  
Balance at beginning of period (in shares) | shares 148,428
Granted (in shares) | shares 85,562
Vested (in shares) | shares (73,454)
Forfeited (in shares) | shares 0
Balance at end of period (in shares) | shares 160,536
Value  
Balance at beginning of period (in dollars per share) | $ / shares $ 78.53
Granted (in dollars per share) | $ / shares 66.57
Vested (in dollars per share) | $ / shares 76.65
Forfeited (in dollars per share) | $ / shares 0.00
Balance at end of period (in dollars per share) | $ / shares $ 73.01