2.4.0.81070 - Disclosure - Accounts and Bills Receivable - Summary of Accounts and Bills Receivable (Detail)truefalsefalse1false USDfalsefalse$eol_PE5554----1320-F0004_STD_0_20130331_0http://www.sec.gov/CIK0001057708instant2013-03-31T00:00:000001-01-01T00:00:00iso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2false USDfalsefalse$eol_PE5554----1320-F0004_STD_0_20120331_0http://www.sec.gov/CIK0001057708instant2012-03-31T00:00:000001-01-01T00:00:00iso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1true 1us-gaap_ReceivablesAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Receivables [Abstract]2false 2us-gaap_AccountsReceivableNetus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse96739869673986USD$falsetruefalse2truefalsefalse1331814313318143USD$falsetruefalsexbrli:monetaryItemTypemonetaryFor an unclassified balance sheet, the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.9) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.5) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 false2Accounts receivable3false 2gai_TradeAccountsReceivablegai_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse1003962210039622falsefalsefalse2truefalsefalse1695491916954919falsefalsefalsexbrli:monetaryItemTypemonetaryTrade accounts receivable.No definition available.false2Bills receivable4false 2us-gaap_AccountsAndOtherReceivablesNetCurrentus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1truefalsefalse1971360819713608USD$falsetruefalse2truefalsefalse3027306230273062USD$falsetruefalsexbrli:monetaryItemTypemonetaryAmount due from customers, clients, or other third-parties, or arising from transactions not separately disclosed, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.No definition available.true2Accounts and bills receivablefalseAccounts and Bills Receivable - Summary of Accounts and Bills Receivable (Detail) (USD $)NoRoundingUnKnownUnKnownUnKnowntruefalsefalseSheethttp://global-webpage.com/taxonomy/role/DisclosureAccountsAndBillsReceivableSummaryOfAccountsAndBillsReceivable24