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Shareholders' Equity - Summary of Grants under Outstanding Stock Award Plans (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Employees [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Awards granted, Number of shares	6,412,045
Employees [Member] | Employee Plan 2010 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Awards granted, Number of shares
Employees [Member] | 2012 CEO Special Bonus [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Awards granted, Number of shares
Employees [Member] | Employee Plan 2012 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Awards granted, Number of shares
Employees [Member] | Employee Plan 2013 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Awards granted, Number of shares	6,412,045
2005 [Member] | Supervisory Board [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Year of grant	2005
Options granted and vested	66,000
Options waived at grant	(15,000)
2006 [Member] | Supervisory Board [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Year of grant	2006
Options granted and vested	66,000
Options waived at grant	(15,000)
2007 [Member] | Supervisory Board [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Year of grant	2007
Options granted and vested	165,000
Options waived at grant	(22,500)
2008 [Member] | Supervisory Board [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Year of grant	2008
Options granted and vested	165,000
Options waived at grant	(22,500)
2009 [Member] | Supervisory Board [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Year of grant	2009
Options granted and vested	165,000
Options waived at grant	(7,500)
2010 [Member] | Supervisory Board [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Year of grant	2010
Options granted and vested	172,500
Options waived at grant	(7,500)
2011 [Member] | Supervisory Board [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Year of grant	2011
Options granted and vested	172,500
Options waived at grant	(30,000)
2012 [Member] | Supervisory Board [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Year of grant	2012
Options granted and vested	180,000	180,000
Options waived at grant	(22,500)	(22,500)
2013 [Member] | Supervisory Board [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Year of grant	2013
Options granted and vested	0
Options waived at grant	0
July 22, 2010 [Member] | Employees [Member] | Employee Plan 2010 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Grant date of Nonvested share	Jul. 22, 2010
Awards granted, Number of shares	6,344,725
Options waived at grant
Share based compensation arrangement by share based payment award, Number of shares lost on performance	(2,076,448)
December 17, 2010 [Member] | Employees [Member] | Employee Plan 2010 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Grant date of Nonvested share	Dec. 17, 2010
Awards granted, Number of shares	221,650
Options waived at grant
Share based compensation arrangement by share based payment award, Number of shares lost on performance	(73,524)
July 25, 2011 [Member] | Employees [Member] | Employee Plan 2011 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Grant date of Nonvested share	Jul. 25, 2011
Awards granted, Number of shares	5,881,630
Options waived at grant
Share based compensation arrangement by share based payment award, Number of shares lost on performance	(5,824,445)
November 14, 2011 [Member] | Employees [Member] | Employee Plan 2011 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Grant date of Nonvested share	Jul. 14, 2011
Awards granted, Number of shares	95,000
Options waived at grant
Share based compensation arrangement by share based payment award, Number of shares lost on performance	(91,540)
May 30, 2012 [Member] | Employees [Member] | 2012 CEO Special Bonus [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Grant date of Nonvested share	May 30, 2012
Awards granted, Number of shares	100,862
Options waived at grant
Share based compensation arrangement by share based payment award, Number of shares lost on performance
July 23, 2012 [Member] | Employees [Member] | Employee Plan 2012 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Grant date of Nonvested share	Jul. 23, 2012
Awards granted, Number of shares	6,216,285
Options waived at grant	(2,400)
Share based compensation arrangement by share based payment award, Number of shares lost on performance	(1,991,558)
December 21, 2012 [Member] | Employees [Member] | Employee Plan 2012 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Grant date of Nonvested share	Dec. 21, 2012
Awards granted, Number of shares	304,480
Options waived at grant
Share based compensation arrangement by share based payment award, Number of shares lost on performance	(100,373)
July 22, 2013 [Member] | Employees [Member] | Employee Plan 2013 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Grant date of Nonvested share	Jul. 22, 2013
Awards granted, Number of shares	5,750,730
Options waived at grant
Share based compensation arrangement by share based payment award, Number of shares lost on performance
December 18, 2013 [Member] | Employees [Member] | Employee Plan 2013 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Grant date of Nonvested share	Dec. 18, 2013
Awards granted, Number of shares	659,515
Options waived at grant
Share based compensation arrangement by share based payment award, Number of shares lost on performance
December 27, 2013 [Member] | Employees [Member] | Employee Plan 2013 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Grant date of Nonvested share	Dec. 27, 2013
Awards granted, Number of shares	1,800
Options waived at grant
Share based compensation arrangement by share based payment award, Number of shares lost on performance

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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