XML 79 R69.htm IDEA: XBRL DOCUMENT v3.5.0.2
Restricted Stock Units (Summary of Restricted Stock Units Issued) (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Share-Based Compensation Arrangement by Share-based Payment Award [Line Item]    
Share based compensation expense $ 25,000 $ 23,000
Restricted Stock [Member]    
Share-Based Compensation Arrangement by Share-based Payment Award [Line Item]    
Restricted Stock Units 990,487 971,457,000
Restricted Stock Units, Fair Value $ 57,959 $ 54,439
Minimum [Member] | Restricted Stock [Member]    
Share-Based Compensation Arrangement by Share-based Payment Award [Line Item]    
Award vesting period 3 years  
Maximum [Member] | Restricted Stock [Member]    
Share-Based Compensation Arrangement by Share-based Payment Award [Line Item]    
Award vesting period 5 years