2.4.0.81144 - Disclosure - Subsequent Events - Additional Information (Detail)truefalsefalse1false truefalseeol_PE864322--13S-4-0005_STD_31_20130219_0_576298x579914http://www.sec.gov/CIK0001530804duration2013-01-20T00:00:002013-02-19T00:00:00falsefalseSubsequent Event [Member]us-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMember2false truefalseeol_PE864322--13S-4-0005_STD_366_20121231_0_576298x579914_580672x580355http://www.sec.gov/CIK0001530804duration2012-01-01T00:00:002012-12-31T00:00:00falsefalseChief Financial Officer [Member]us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTitleOfIndividualAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_ChiefExecutiveOfficerMemberus-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTitleOfIndividualAxisexplicitMemberfalsefalseSubsequent Event [Member]us-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMember3false USDtruefalse$eol_PE864322--13S-4-0005_STD_37_20130507_0_577130x578162http://www.sec.gov/CIK0001530804duration2013-04-01T00:00:002013-05-07T00:00:00falsefalseClass A common stock [Member]us-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommonClassAMemberus-gaap_StatementClassOfStockAxisexplicitMemberiso4217_USD_per_sharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instanceshares0USDUSD$4false USDtruefalse$eol_PE864322--13S-4-0005_STD_31_20130219_0_577130x578162http://www.sec.gov/CIK0001530804duration2013-01-20T00:00:002013-02-19T00:00:00falsefalseClass A common stock [Member]us-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommonClassAMemberus-gaap_StatementClassOfStockAxisexplicitMemberiso4217_USD_per_sharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instanceshares0USDUSD$5false USDtruefalse$eol_PE864322--13S-4-0005_STD_91_20130630_0_577130x578162http://www.sec.gov/CIK0001530804duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseClass A common stock [Member]us-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommonClassAMemberus-gaap_StatementClassOfStockAxisexplicitMemberiso4217_USD_per_sharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instanceshares0USDUSD$6false USDtruefalse$eol_PE864322--13S-4-0005_STD_100_20121108_0_577130x578162http://www.sec.gov/CIK0001530804duration2012-08-01T00:00:002012-11-08T00:00:00falsefalseClass A common stock [Member]us-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommonClassAMemberus-gaap_StatementClassOfStockAxisexplicitMemberiso4217_USD_per_sharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instanceshares0USDUSD$7false USDtruefalse$eol_PE864322--13S-4-0005_STD_87_20120626_0_577130x578162http://www.sec.gov/CIK0001530804duration2012-04-01T00:00:002012-06-26T00:00:00falsefalseClass A common stock [Member]us-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommonClassAMemberus-gaap_StatementClassOfStockAxisexplicitMemberiso4217_USD_per_sharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instanceshares0USDUSD$8false USDtruefalse$eol_PE864322--13S-4-0005_STD_366_20121231_0_576298x579914_577130x578162http://www.sec.gov/CIK0001530804duration2012-01-01T00:00:002012-12-31T00:00:00falsefalseClass A common stock [Member]us-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommonClassAMemberus-gaap_StatementClassOfStockAxisexplicitMemberfalsefalseSubsequent Event [Member]us-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberiso4217_USD_per_sharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instanceshares0USDUSD$9false USDtruefalse$eol_PE864322--13S-4-0005_STD_37_20130507_0_577130x577986http://www.sec.gov/CIK0001530804duration2013-04-01T00:00:002013-05-07T00:00:00falsefalseClass B common stock [Member]us-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommonClassBMemberus-gaap_StatementClassOfStockAxisexplicitMemberiso4217_USD_per_sharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instanceshares0USDUSD$10false USDtruefalse$eol_PE864322--13S-4-0005_STD_31_20130219_0_577130x577986http://www.sec.gov/CIK0001530804duration2013-01-20T00:00:002013-02-19T00:00:00falsefalseClass B common stock [Member]us-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommonClassBMemberus-gaap_StatementClassOfStockAxisexplicitMemberiso4217_USD_per_sharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instanceshares0USDUSD$11false USDtruefalse$eol_PE864322--13S-4-0005_STD_91_20130630_0_577130x577986http://www.sec.gov/CIK0001530804duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseClass B common stock [Member]us-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommonClassBMemberus-gaap_StatementClassOfStockAxisexplicitMemberiso4217_USD_per_sharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instanceshares0USDUSD$12false USDtruefalse$eol_PE864322--13S-4-0005_STD_100_20121108_0_577130x577986http://www.sec.gov/CIK0001530804duration2012-08-01T00:00:002012-11-08T00:00:00falsefalseClass B common stock [Member]us-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommonClassBMemberus-gaap_StatementClassOfStockAxisexplicitMemberiso4217_USD_per_sharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instanceshares0USDUSD$13false USDtruefalse$eol_PE864322--13S-4-0005_STD_87_20120626_0_577130x577986http://www.sec.gov/CIK0001530804duration2012-04-01T00:00:002012-06-26T00:00:00falsefalseClass B common stock [Member]us-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommonClassBMemberus-gaap_StatementClassOfStockAxisexplicitMemberiso4217_USD_per_sharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instanceshares0USDUSD$14false USDtruefalse$eol_PE864322--13S-4-0005_STD_366_20121231_0_576298x579914_577130x577986http://www.sec.gov/CIK0001530804duration2012-01-01T00:00:002012-12-31T00:00:00falsefalseClass B common stock [Member]us-gaap_StatementClassOfStockAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommonClassBMemberus-gaap_StatementClassOfStockAxisexplicitMemberfalsefalseSubsequent Event [Member]us-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberiso4217_USD_per_sharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instanceshares0USDUSD$1true 3us-gaap_SubsequentEventLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Subsequent Event [Line Items]2false 4us-gaap_DividendsPayableDateDeclaredDayMonthAndYearus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse002013-02-19falsefalsetrue2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse002013-03-20falsefalsetrue9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse002013-03-20falsefalsetruexbrli:dateItemTypedateDate the dividend to be paid was declared, in CCYY-MM-DD format.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 32 -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. false0Dividend declared, record date for shareholders3false 4us-gaap_CommonStockDividendsPerShareDeclaredus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse0.250.25USD$falsetruefalse4truefalsefalse0.250.25USD$falsetruefalse5truefalsefalse0.250.25USD$falsetruefalse6truefalsefalse0.250.25USD$falsetruefalse7truefalsefalse0.250.25USD$falsetruefalse8truefalsefalse0.250.25USD$falsetruefalse9truefalsefalse0.250.25USD$falsetruefalse10truefalsefalse0.250.25USD$falsetruefalse11truefalsefalse0.250.25USD$falsetruefalse12truefalsefalse0.250.25USD$falsetruefalse13truefalsefalse0.250.25USD$falsetruefalse14truefalsefalse0.250.25USD$falsetruefalsenum:perShareItemTypedecimalAggregate dividends declared during the period for each share of common stock outstanding.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 false3Common Stock Dividends Per Share Declared4false 4trox_RetirementAgreementExecutionDatetrox_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse002013-03-31falsefalsetrue3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalsexbrli:dateItemTypedateRetirement Agreement Execution DateNo definition available.false0Resignation Date of Daniel D Greenwell Chief executive officerfalseSubsequent Events - Additional Information (Detail) (USD $)UnKnownUnKnownNoRoundingUnKnowntruefalsefalseSheethttp://imetrix.edgar-online.com/taxonomy/role/DisclosureSubsequentEventsAdditionalInformation144