Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Share-Based Compensation (Narrative) (Details)

v3.6.0.2
Share-Based Compensation (Narrative) (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2016
USD ($)
shares
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Share-Based Compensation [Line Items]      
Restricted Stock Units, Convertible, Conversion Ratio 1    
Share based compensation expenses, before tax | $ $ 102,843 $ 100,162 $ 68,152
NV Equity Plan [Member]      
Share-Based Compensation [Line Items]      
Equity awards available for grants 8,064,081    
Equity Incentive Plan 2014 [Member]      
Share-Based Compensation [Line Items]      
Equity awards available for grants 4,500,000    
Minimum [Member]      
Share-Based Compensation [Line Items]      
Equity award vesting period 3 years    
Maximum [Member]      
Share-Based Compensation [Line Items]      
Ownership percentage 50.00% 50.00%  
Equity award vesting period 5 years