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Commitments and Contingencies (Details) - USD ($) $ in Thousands | May 11, 2020 | Apr. 30, 2020 | Jul. 31, 2019 | Aug. 31, 2017
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Commitments and Contingencies (Textual) |  |  |  |
Accrued expenses |  | $ 40,000 | $ 44,700 |
Purchase commitment |  | 8,700 |  |
Aggregate commitment |  | 5,700 |  |
Performance bonds outstanding |  | 18,000 |  |
Restricted cash and cash equivalents |  | $ 6,600 | $ 13,200 |
Telecom Operator [Member] |  |  |  |
Commitments and Contingencies (Textual) |  |  |  |
Escrow deposit |  |  |  | $ 9,200
Telecom Operator [Member] | Subsequent Event [Member] |  |  |  |
Commitments and Contingencies (Textual) |  |  |  |
Escrow deposit | $ 9,200 |  |  |

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- Definition Amount of cash and cash equivalents substantially restricted. + References No definition available. + Details
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Balance Type: | debit
Period Type: | instant

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- Definition Commitments and contingencies. + References No definition available. + Details
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- Definition In certain circumstances, the company is required to provide performance bonds in connection with its contractual commitments. Company has indemnified the surety for any expenses paid out under these performance bonds. + References No definition available. + Details
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- Definition Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15(a)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + Details
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- Definition The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier. + References No definition available. + Details
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- Details
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Namespace Prefix: |
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- Details
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Period Type: |