XML 61 R101.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Other Operating Income (Expense), Net (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012
Components of Other Operating Income [Line Items] |  |  |  |
Other operating (income) expense | $ (1,051) | $ (789) | $ (2,260) | $ (2,302)
Provision for impairment of capital work in progress / property, plant and equipment |  | 2,121 | 2,392 | 2,121
Change in fair value of earn out consideration and deferred consideration (relating to business acquisitions) | (2,181) | (1,930) | (4,452) | (1,930)
Other operating (income) expense, net | $ (3,232) | $ (598) | $ (4,320) | $ (2,111)

X
- Definition This element represents the amount of any change, including any differences arising upon settlement, recognized during the reporting period in the value of a liability, arising from an item of contingent/deferred consideration, assumed in a business combination. + References No definition available. + Details
Name: | g_BusinessCombinationContingentAndDeferredConsiderationArrangementsChangeInAmountOfContingentAndDeferredConsiderationLiability
Namespace Prefix: | g_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | g_ComponentsOfOtherOperatingIncomeLineItems
Namespace Prefix: | g_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of other operating income (expenses), not previously categorized, from items that are associated with the entity's operation. + References No definition available. + Details
Name: | g_OtherOperatingIncomeExpense
Namespace Prefix: | g_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2921-110230 + Details
Name: | us-gaap_OtherAssetImpairmentCharges
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The net amount of other operating income and expenses, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operations. + References No definition available. + Details
Name: | us-gaap_OtherOperatingIncomeExpenseNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration