Name:	trr_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipleAfterYearFive
Namespace Prefix:	trr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The amount of long-term debt and capital lease obligations maturities repayments of principal in the next twelve months.

No definition available.

Name:	trr_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipleInNextTwelveMonths
Namespace Prefix:	trr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The amount of long-term debt and capital lease obligations maturities repayments of principal in the next forty-nine to sixty months.

No definition available.

Name:	trr_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipleInYearFive
Namespace Prefix:	trr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The amount of long-term debt and capital lease obligations maturities repayments of principal in the next thirty-seven to forty-eight months.

No definition available.

Name:	trr_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipleInYearFour
Namespace Prefix:	trr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The amount of long-term debt and capital lease obligations maturities repayments of principal in the next twenty-five to thirty-six months.

No definition available.

Name:	trr_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipleInYearThree
Namespace Prefix:	trr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The amount of long-term debt and capital lease obligations maturities repayments of principal in the next thirteen to twenty-four months.

No definition available.

Name:	trr_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipleInYearTwo
Namespace Prefix:	trr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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 210.9-03.13,16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878