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Subsequent Event | 12 Months Ended
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Sep. 30, 2018
Subsequent Events [Abstract] |
Subsequent Event | 24. Subsequent Event On November 13, 2018, the Company announced it had acquired all of the intellectual property and related assets of the OptoSeis® fiber optic sensing technology business from PGS Americas, Inc. The OptoSeis® business operations will remain in Austin, Texas and operate as a division of the Company. The purchase price for the OptoSeis® technology consisted of a cash down payment at closing of $1.8 million plus contingent earn-out payments of up to $23.2 million over a five-and-a-half year earn-out period. The contingent cash payments will be derived from eligible revenues generated during the earn-out period from products and services utilizing the OptoSeis® fiber optic technology.

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- Definition The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 855 -URI http://asc.fasb.org/topic&trid=2122774 + Details
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