XML 33 R47.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Stock-Based Compensation - SAR Activity (Detail) (Stock Appreciation Rights [Member], USD $) | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Stock Appreciation Rights [Member] |  |  |
Schedule Of Stock Appreciation Rights Activity [Line Items] |  |  |
SARs Outstanding, Beginning Balance | 687,190 | 1,162,705 | 1,246,495
Granted, SARs | 60,588 | 100,914 | 96,765
Exercised, SARs | (374,667) | (567,953) | (180,555)
Canceled, SARs | (3,514) | (8,476) |
Shares Outstanding, SARs, Ending Balance | 369,597 | 687,190 | 1,162,705
Outstanding, Weighted Average Grant Price Per Share, Beginning Balance | $ 18.56 | $ 13.17 | $ 13.70
Vested, SARs | 230,604 |  |
Granted, Weighted Average Grant Price Per Share | $ 43.89 | $ 25.75 | $ 25.76
Exercisable, SARs | 230,604 |  |
Exercised, Weighted Average Grant Price Per Share | $ 15.39 | $ 13.08 | $ 28.34
Canceled, Weighted Average Grant Price Per Share | $ 26.20 | $ 24.15 |
Outstanding, Weighted Average Grant Price Per Share, Ending Balance | $ 25.85 | $ 18.56 | $ 13.17
Vested, Weighted Average Grant Price Per Share | $ 21.37 |  |
Exercisable, Weighted Average Grant Price Per Share | $ 21.37 |  |
Weighted Average Remaining Contractual Life, Outstanding | 6 years 10 months 24 days |  |
Weighted Average Remaining Contractual Life, Vested | 6 years |  |
Weighted Average Remaining Contractual Life, Exercisable | 6 years |  |
Aggregate Intrinsic Value, Outstanding | $ 2,547,706 |  |
Aggregate Intrinsic Value, Vested | 1,386,104 |  |
Aggregate Intrinsic Value, Exercisable | $ 1,386,104 |  |

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

X
- Definition Number of equity instruments other than options exercisable. + References No definition available. + Details
Name: | trex_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisable
Namespace Prefix: | trex_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of equity instruments other than options vested. + References No definition available. + Details
Name: | trex_SharebasedCompensationArrangementByShareBasedPaymentAwardNonoptionEquityInstrumentsVested
Namespace Prefix: | trex_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Share based compensation arrangement by share based payment award non options equity instruments canceled weighted average grant price. + References No definition available. + Details
Name: | trex_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsEquityInstrumentsCanceledWeightedAverageGrantPrice
Namespace Prefix: | trex_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share based compensation arrangement by share based payment award non options equity instruments exercisable weighted average grant price. + References No definition available. + Details
Name: | trex_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsEquityInstrumentsExercisableWeightedAverageGrantPrice
Namespace Prefix: | trex_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Share based compensation arrangement by share based payment award non options equity instruments exercised weighted average grant price. + References No definition available. + Details
Name: | trex_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsEquityInstrumentsExercisedWeightedAverageGrantPrice
Namespace Prefix: | trex_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share based compensation arrangement by share based payment award non options equity instruments granted weighted average grant price. + References No definition available. + Details
Name: | trex_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsEquityInstrumentsGrantedWeightedAverageGrantPrice
Namespace Prefix: | trex_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share based compensation arrangement by share based payment award non options equity instruments outstanding weighted average grant price. + References No definition available. + Details
Name: | trex_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsEquityInstrumentsOutstandingWeightedAverageGrantPrice
Namespace Prefix: | trex_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Share based compensation arrangement by share based payment award non options equity instruments vested weighted average grant price. + References No definition available. + Details
Name: | trex_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsEquityInstrumentsVestedWeightedAverageGrantPrice
Namespace Prefix: | trex_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Share based compensation arrangement by share based payment award non options exercisable intrinsic value. + References No definition available. + Details
Name: | trex_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsExercisableIntrinsicValue
Namespace Prefix: | trex_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Sharebased compensation arrangement by sharebased payment award non options exercisable weighted average remaining contractual term. + References No definition available. + Details
Name: | trex_SharebasedCompensationArrangementBySharebasedPaymentAwardNonOptionsExercisableWeightedAverageRemainingContractualTerm
Namespace Prefix: | trex_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Definition Sharebased compensation arrangement by sharebased payment award non options vested and expected to vest outstanding weighted average remaining contractual term. + References No definition available. + Details
Name: | trex_SharebasedCompensationArrangementBySharebasedPaymentAwardNonOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm
Namespace Prefix: | trex_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Definition Intrinsic value of equity-based compensation awards outstanding. Excludes stock and unit options. + References No definition available. + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Intrinsic value of equity-based compensation awards vested. Excludes stock and unit options. + References No definition available. + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVested
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of non-option equity instruments exercised by participants. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares under non-option equity instrument agreements that were cancelled as a result of occurrence of a terminating event. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Net number of non-option equity instruments granted to participants. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of equity instruments other than options outstanding, including both vested and non-vested instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant