Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash

-URI http://asc.fasb.org/extlink&oid=6506951

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash Equivalents

-URI http://asc.fasb.org/extlink&oid=6507016

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 1

-Article 5

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.1)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3044-108585

Basis of Presentation (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Revenues	$ 95,680us-gaap_SalesRevenueNet	$ 97,040us-gaap_SalesRevenueNet
Educational services And facilities	47,830uti_EducationalServicesAndFacilities	51,074uti_EducationalServicesAndFacilities
Selling, general and administrative	42,250	42,908
Total operating expenses	90,080us-gaap_OperatingExpenses	93,982us-gaap_OperatingExpenses
Income from operations	5,600us-gaap_OperatingIncomeLoss	3,058us-gaap_OperatingIncomeLoss
Other income	112us-gaap_OtherNonoperatingIncomeExpense	274us-gaap_OtherNonoperatingIncomeExpense
Total other income	(269)us-gaap_NonoperatingIncomeExpense	223us-gaap_NonoperatingIncomeExpense
Income before income taxes	5,331	3,281
Income tax expense	2,237us-gaap_IncomeTaxExpenseBenefit	1,574us-gaap_IncomeTaxExpenseBenefit
Net income	3,094us-gaap_NetIncomeLoss	1,707us-gaap_NetIncomeLoss
Bad debt expense	934us-gaap_ProvisionForDoubtfulAccounts	1,333us-gaap_ProvisionForDoubtfulAccounts
Deferred income taxes	1,990us-gaap_DeferredIncomeTaxExpenseBenefit	1,550us-gaap_DeferredIncomeTaxExpenseBenefit
Restricted cash: Title IV credit balances		211us-gaap_IncreaseInRestrictedCash
Receivables	(7,425)us-gaap_IncreaseDecreaseInReceivables	165us-gaap_IncreaseDecreaseInReceivables
Prepaid expenses and other current assets	(835)	(1,382)
Other assets	(559)	(317)
Deferred revenue	2,845	224
Income tax payable/receivable	(4,177)	(283)
Accrued tool sets and other current liabilities	365	165
Deferred rent liability	425uti_IncreaseDecreaseInDeferredRent	(477)uti_IncreaseDecreaseInDeferredRent
Net cash provided by operating activities	1,997	9,621
Net increase in cash and cash equivalents		1,488us-gaap_CashPeriodIncreaseDecrease
Cash and cash equivalents, beginning of period	38,985	34,596	33,044	36,084
Scenario, Previously Reported [Member]
Revenues		97,029
Educational services And facilities		51,111
Selling, general and administrative		42,915
Total operating expenses		94,026
Income from operations		3,003
Other income		275
Total other income		224
Income before income taxes		3,227
Income tax expense		1,567
Net income		1,660
Bad debt expense		1,341
Deferred income taxes		1,549
Restricted cash: Title IV credit balances		0
Receivables		(13)
Prepaid expenses and other current assets		(1,344)
Other assets		(316)
Deferred revenue		201
Income tax payable/receivable		(79)
Accrued tool sets and other current liabilities		163
Net cash provided by operating activities		9,410
Net increase in cash and cash equivalents		1,277
Cash and cash equivalents, beginning of period		35,657		36,934
Restatement Adjustment [Member]
Revenues		11
Educational services And facilities		(37)
Selling, general and administrative		(7)
Total operating expenses		(44)
Income from operations		55
Other income		(1)
Total other income		(1)
Income before income taxes		54
Income tax expense		7
Net income		47
Bad debt expense		(8)
Deferred income taxes		1
Restricted cash: Title IV credit balances		211
Receivables		178
Prepaid expenses and other current assets		(38)
Other assets		(1)
Deferred revenue		23
Income tax payable/receivable		(204)
Accrued tool sets and other current liabilities		2
Net cash provided by operating activities		211
Net increase in cash and cash equivalents		211
Cash and cash equivalents, beginning of period		$ (1,061)		$ (850)