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Income Taxes - Reconciliation of Federal Statutory Income Tax Rate to Effective Tax Rate (Parenthetical) (Detail) | 12 Months Ended
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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.

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- Definition The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I) -URI http://asc.fasb.org/extlink&oid=6889476&loc=d3e330036-122817 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 47 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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