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Changes in Carrying Amount of Net Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Jun. 30, 2013 | Jun. 30, 2012
Intangible Assets [Line Items] |  |
Beginning balance | $ 46,476 | $ 52,282
Amortization expense | (5,061) | (5,094)
Currency translation | (863) | (712)
Ending balance | $ 40,552 | $ 46,476

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- Definition Intangible Assets, Amortization Expense + References No definition available. + Details
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Namespace Prefix: | tech_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
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Namespace Prefix: | tech_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | debit
Period Type: | instant

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- Definition Amount of increase (decrease) to assets, excluding financial assets and goodwill, lacking physical substance with a finite life for foreign currency translation adjustments. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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