XML 56 R43.htm IDEA: XBRL DOCUMENT v3.4.0.3
Benefit Plans - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Amortization related to restricted stock/Unit awards and LTIP Unit Awards $ 2,963 $ 2,561
Unrecognized compensation related to unvested restricted stock/Unit awards and LTIP Unit Awards $ 11,077  
Weighted average period of unrecognized compensation expected to be recognized 9 months  
LTIP Unit Awards | Minimum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting percentage of LTIP Unit Awards 0.00%  
LTIP Unit Awards | Maximum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting percentage of LTIP Unit Awards 100.00%  
Management | Restricted Stock/Unit    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Restricted stock/Unit awards and LTIP Unit Awards issued 308,373  
Fair value of restricted stock/Unit awards and LTIP Unit Awards issued $ 6,047  
Vesting period of restricted stock/Unit awards issued 3 years  
Compensation expense recognized at date of grant $ 1,590 $ 1,250
Management | LTIP Unit Awards    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Restricted stock/Unit awards and LTIP Unit Awards issued 254,524  
Fair value of restricted stock/Unit awards and LTIP Unit Awards issued $ 2,561