FINANCE RECEIVABLES - Finance Receivable Credit Quality Indicators (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment, 2020 [Abstract]
Originated in current fiscal year	$ 16.3	$ 87.4
Originated in prior fiscal year	55.9	64.3
Originated two years before current fiscal year	49.7	8.0
Originated three years before current fiscal year	5.0	4.6
Originated four years before current fiscal year	4.2	1.9
Prior	1.3	0.0
Total finance receivables	132.4	166.2
Superior
Financing Receivable, Recorded Investment, 2020 [Abstract]
Originated in current fiscal year	0.8	1.7
Originated in prior fiscal year	0.0	0.0
Originated two years before current fiscal year	0.0	0.0
Originated three years before current fiscal year	0.0	0.0
Originated four years before current fiscal year	0.0	0.0
Prior	0.0	0.0
Total finance receivables	0.8	1.7
Above Average
Financing Receivable, Recorded Investment, 2020 [Abstract]
Originated in current fiscal year	5.1	12.6
Originated in prior fiscal year	2.2	3.0
Originated two years before current fiscal year	2.4	0.0
Originated three years before current fiscal year	0.0	0.0
Originated four years before current fiscal year	0.0	1.7
Prior	1.2	0.0
Total finance receivables	10.9	17.3
Average
Financing Receivable, Recorded Investment, 2020 [Abstract]
Originated in current fiscal year	8.3	20.8
Originated in prior fiscal year	28.6	17.1
Originated two years before current fiscal year	25.7	3.4
Originated three years before current fiscal year	2.9	0.7
Originated four years before current fiscal year	0.0	0.1
Prior	0.0	0.0
Total finance receivables	65.5	42.1
Below Average
Financing Receivable, Recorded Investment, 2020 [Abstract]
Originated in current fiscal year	2.1	44.6
Originated in prior fiscal year	16.9	43.1
Originated two years before current fiscal year	20.1	4.6
Originated three years before current fiscal year	2.1	3.9
Originated four years before current fiscal year	4.2	0.0
Prior	0.1	0.0
Total finance receivables	45.5	96.2
Sub Standard
Financing Receivable, Recorded Investment, 2020 [Abstract]
Originated in current fiscal year	0.0	7.7
Originated in prior fiscal year	8.2	1.1
Originated two years before current fiscal year	1.5	0.0
Originated three years before current fiscal year	0.0	0.0
Originated four years before current fiscal year	0.0	0.1
Prior	0.0	0.0
Total finance receivables	$ 9.7	$ 8.9

Amount of financing receivable originated five or more years prior to latest fiscal year.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 55
-Paragraph 79
-URI http://asc.fasb.org/extlink&oid=118955255&loc=SL82922352-210448

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919232-210447

+ Details

Name:	us-gaap_FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of financing receivable originated four years prior to latest fiscal year.

+ References

+ Details

Name:	us-gaap_FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of financing receivable originated in current fiscal year.

+ References

+ Details

Name:	us-gaap_FinancingReceivableOriginatedInCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of financing receivable originated in fiscal year prior to latest fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919232-210447

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 55
-Paragraph 79
-URI http://asc.fasb.org/extlink&oid=118955255&loc=SL82922352-210448

+ Details

Name:	us-gaap_FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of financing receivable originated three years prior to latest fiscal year.

+ References

+ Details

Name:	us-gaap_FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of financing receivable originated two years prior to latest fiscal year.

+ References

+ Details

Name:	us-gaap_FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentAgingAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, before allowance for credit loss, of financing receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919230-210447

+ Details

Name:	us-gaap_NotesReceivableGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=tex_SuperiorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=tex_AboveAverageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=tex_AverageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=tex_BelowAverageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: