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Income Taxes - Schedule of Changes in Unrecognized Tax Benefit (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Jul. 31, 2019 | Jul. 31, 2018 | Jul. 31, 2017
Income Tax Disclosure [Abstract] |  |  |
Beginning balance | $ 13,004 | $ 12,671 | $ 13,269
Tax positions related to prior years: Additions |  | 353 | 75
Tax positions related to prior years: Reductions | (263) | (2,203) | (1,510)
Tax positions related to current year: Additions | 2,062 | 3,629 | 3,853
Settlements | (773) | (192) | (1,450)
Lapses in statute of limitations | (918) | (1,254) | (1,566)
Tax positions acquired from EHG | 736 |  |
Ending balance | $ 13,848 | $ 13,004 | $ 12,671

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- Definition Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319 + Details
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- Definition Amount of increase in unrecognized tax benefits resulting from acquisitions. + References No definition available. + Details
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- Definition Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319 + Details
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