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BUSINESS COMBINATIONS (Details) - USD ($) $ in Thousands |  | 12 Months Ended |
--- | --- | --- | ---
Jun. 02, 2017 | Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2015
Business Combinations |  |  |  |
Amortization period of developed technology |  | 15 years |  |
Amortization |  | $ 1,100 |  |
Expected annual amortization |  | 3,400 |  |
Fair value of assets acquired |  |  |  |
Goodwill |  | 51,705 | $ 4,718 | $ 4,718
Fair value of liabilities assumed |  |  |  |
Contingent earnout liability |  | 14,879 |  |
(Level 3) |  |  |  |
Fair value of liabilities assumed |  |  |  |
Contingent earnout liability |  | 14,879 |  |
MOTIVE Merger |  |  |  |
Business Combinations |  |  |  |
Payment for business acquisition | $ 74,275 |  |  |
Future potential earnout payments | 25,000 |  |  |
Escrow deposit | $ 9,400 |  |  |
Percentage of escrow to be released to seller on each of twelve and eight month anniversaries | 50.00% |  |  |
Revenues |  | 3,300 |  |
Net loss |  | (2,200) |  |
Purchase Price |  |  |  |
Cash consideration | $ 74,275 |  |  |
Long-term contingent earnout liability (Other noncurrent liabilities) | 14,509 |  |  |
Total cash consideration given | 88,784 |  |  |
Fair value of assets acquired |  |  |  |
Current assets | 4,425 |  |  |
Property, plant and equipment | 300 |  |  |
Intangible asset - developed technology (Intangible assets, net of amortization) | 51,000 |  |  |
Goodwill | 46,987 |  |  |
Total assets acquired | 102,712 |  |  |
Fair value of liabilities assumed |  |  |  |
Current liabilities | 25 |  |  |
Deferred income taxes | 13,903 |  |  |
Total liabilities acquired | 13,928 |  |  |
Fair value of total assets and liabilities acquired | $ 88,784 |  |  |
Proforma financial information: |  |  |  |
After tax transaction cost adjusted for proforma financial information |  | 2,100 |  |
Revenues |  | 1,807,950 | 1,626,305 |
Net loss |  | (127,093) | $ (59,776) |
MOTIVE Merger | Developed technology |  |  |  |
Business Combinations |  |  |  |
Amortization period of developed technology | 15 years |  |  |
Amortization |  | 1,100 |  |
Expected annual amortization | $ 3,400 |  |  |
MOTIVE Merger | General and Administrative |  |  |  |
Business Combinations |  |  |  |
Business acquisition transaction cost |  | 3,200 |  |
MOTIVE Merger | (Level 3) |  |  |  |
Fair value of liabilities assumed |  |  |  |
Contingent earnout liability | $ 14,500 | $ 14,900 |  |

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- Definition Percentage of the amount of cash escrow to be released to the seller on each of the twelve and eighteen month anniversaries of the merger completion date. + References No definition available. + Details
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- Definition Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled beyond one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 35 -Paragraph 1 -Subparagraph b -URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478 + Details
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- Definition This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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- Definition Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition Amount of deferred tax liability attributable to taxable temporary differences assumed at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84176650&loc=d3e31917-109318 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition The amount of identifiable intangible assets recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=84160947&loc=d3e2207-128464 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition Amount of liabilities assumed at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition The amount of property, plant, and equipment recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=84160947&loc=d3e2207-128464 + Details
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- Definition Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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