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Venezuela's Highly Inflationary Economy - Additional Information (Detail) (USD $)
3 Months Ended 6 Months Ended 3 Months Ended
Nov. 30, 2014
Feb. 28, 2014
Nov. 30, 2013
Nov. 30, 2014
Nov. 30, 2013
May 31, 2014
Mar. 31, 2014
Investment in Country with High Inflationary Economy [Line Items]              
Percentage of consolidated revenues from small service location       1.00%tisi_MaximumPercentageOfSalesRevenueNetFrom      
Recognized losses related to the Venezuelan currency $ (635,000)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax $ (1,900,000)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax $ (140,000)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax $ (816,000)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax $ (530,000)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax    
SICAD-2              
Investment in Country with High Inflationary Economy [Line Items]              
Recognized losses related to the Venezuelan currency           (2,100,000)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax
/ tisi_AllExchangesAxis
= tisi_SICADTwoMember
 
Foreign currency exchange rate             50us-gaap_ForeignCurrencyExchangeRateTranslation1
/ tisi_AllExchangesAxis
= tisi_SICADTwoMember
SICAD-2 | Minimum              
Investment in Country with High Inflationary Economy [Line Items]              
Foreign currency exchange rate             10us-gaap_ForeignCurrencyExchangeRateTranslation1
/ tisi_AllExchangesAxis
= tisi_SICADTwoMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
SICAD-2 | Maximum              
Investment in Country with High Inflationary Economy [Line Items]              
Foreign currency exchange rate             11.8us-gaap_ForeignCurrencyExchangeRateTranslation1
/ tisi_AllExchangesAxis
= tisi_SICADTwoMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Venezuela              
Investment in Country with High Inflationary Economy [Line Items]              
Net assets of Venezuelan subsidiary $ 900,000us-gaap_AssetsNet
/ us-gaap_StatementGeographicalAxis
= country_VE
    $ 900,000us-gaap_AssetsNet
/ us-gaap_StatementGeographicalAxis
= country_VE
  $ 700,000us-gaap_AssetsNet
/ us-gaap_StatementGeographicalAxis
= country_VE