Income Taxes - Reconciliation of Federal Statutory Income Tax Rate to Effective Tax Rate (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Income Taxes [Line Items]
Statutory income tax rate	7.80%	[1]	7.80%	[1]	35.00%	[1]
SWITZERLAND
Income Taxes [Line Items]
Statutory income tax rate	7.80%		7.80%
U.S.
Income Taxes [Line Items]
Statutory income tax rate					35.00%

[1] As a result of the Merger, the statutory rate for 2013 and 2012 reflects the Swiss statutory rate of 7.8 percent. For 2011, the statutory rate reflects the U.S. statutory rate of 35 percent.