Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Topic 942
-SubTopic 210
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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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Long-term Debt (Details) - USD ($) $ in Millions	6 Months Ended
Long-term Debt (Details) - USD ($) $ in Millions	Mar. 31, 2016	Jan. 30, 2015	Dec. 31, 2014
BTU International, Inc (BTU) Merger
Debt Instrument [Line Items]
Long-term debt acquired		$ 7.2
SoLayTec, B.V.
Debt Instrument [Line Items]
Long-term debt acquired			$ 2.0
Long-term debt	$ 3.4
Proceeds from issuance of debt	$ 0.8
SoLayTec, B.V. \| Minimum
Debt Instrument [Line Items]
Interest rate	5.95%
SoLayTec, B.V. \| Maximum
Debt Instrument [Line Items]
Interest rate	10.00%
Mortgage Note \| BTU International, Inc (BTU) Merger
Debt Instrument [Line Items]
Long-term debt	$ 6.7
Interest rate		4.40%
Federal Home Loan Board Five Year Classic Advance Rate \| Mortgage Note
Debt Instrument [Line Items]
Basis spread on variable rate	240.00%