XML 115 R102.htm IDEA: XBRL DOCUMENT v3.10.0.1
Shareholders' Equity - Summary of Nonvested Share Activity (Detail) - shares
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Awards vested, Number of Shares (6,011,271)  
Employees [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Beginning Balance, Number of Shares 13,155,039  
Awards granted, Number of Shares 8,018,493  
Awards forfeited/waived, Number of Shares (115,566)  
Awards cancelled on failed vesting conditions, Number of Shares 0  
Awards vested, Number of Shares (6,011,271)  
Ending Balance, Number of Shares 15,046,695 13,155,039
Employees [Member] | 2015 CEO Special Bonus [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Beginning Balance, Number of Shares 17,789  
Awards cancelled on failed vesting conditions, Number of Shares 0  
Awards vested, Number of Shares (17,789)  
Ending Balance, Number of Shares   17,789
Employees [Member] | Employee Plan 2015 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Beginning Balance, Number of Shares 1,630,784  
Awards forfeited/waived, Number of Shares (5,200)  
Awards cancelled on failed vesting conditions, Number of Shares 0  
Awards vested, Number of Shares (1,625,584)  
Ending Balance, Number of Shares   1,630,784
Employees [Member] | 2016 CEO Special Bonus [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Beginning Balance, Number of Shares 46,110  
Awards cancelled on failed vesting conditions, Number of Shares 0  
Awards vested, Number of Shares (46,110)  
Ending Balance, Number of Shares   46,110
Employees [Member] | Employee Plan 2016 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Beginning Balance, Number of Shares 3,512,846  
Awards forfeited/waived, Number of Shares (27,339)  
Awards cancelled on failed vesting conditions, Number of Shares 0  
Awards vested, Number of Shares (1,681,367)  
Ending Balance, Number of Shares 1,804,140 3,512,846
Employees [Member] | Employee Plan 2017 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Beginning Balance, Number of Shares 7,947,510  
Awards forfeited/waived, Number of Shares (61,997)  
Awards cancelled on failed vesting conditions, Number of Shares 0  
Awards vested, Number of Shares (2,616,538)  
Ending Balance, Number of Shares 5,268,975 7,947,510
Employees [Member] | 2017 CEO Special Bonus [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Awards granted, Number of Shares 22,883  
Awards cancelled on failed vesting conditions, Number of Shares 0  
Awards vested, Number of Shares (22,883)  
Employees [Member] | Employee Plan 2018 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Awards granted, Number of Shares 7,995,610  
Awards forfeited/waived, Number of Shares (21,030)  
Awards cancelled on failed vesting conditions, Number of Shares 0  
Awards vested, Number of Shares (1,000)  
Ending Balance, Number of Shares 7,973,580  
Supervisory Board [Member] | 2007 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Beginning Balance, Number of Shares   7,500
Year of grant 2007  
Exercised   (7,500)
Supervisory Board [Member] | 2008 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Beginning Balance, Number of Shares 16,500 24,000
Year of grant 2008  
Exercised (16,500) (7,500)
Ending Balance, Number of Shares   16,500
Supervisory Board [Member] | 2009 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Beginning Balance, Number of Shares 22,500 35,000
Year of grant 2009  
Exercised (22,500) (12,500)
Ending Balance, Number of Shares   22,500
Supervisory Board [Member] | 2010 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Beginning Balance, Number of Shares 30,000 45,000
Year of grant 2010  
Exercised (7,500) (15,000)
Ending Balance, Number of Shares 22,500 30,000
Supervisory Board [Member] | 2011 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Beginning Balance, Number of Shares 52,500 67,500
Year of grant 2011  
Exercised   (15,000)
Ending Balance, Number of Shares 52,500 52,500
Supervisory Board [Member] | 2012 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Beginning Balance, Number of Shares 65,000 87,500
Year of grant 2012  
Exercised   (22,500)
Ending Balance, Number of Shares 65,000 65,000