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Fair Value Measurements (Details) - USD ($) |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Oct. 05, 2015 | Sep. 30, 2017 | Jan. 09, 2017 | Nov. 01, 2016 | Sep. 30, 2016 | Sep. 30, 2015
Fair Value, Inputs, Level 3 |  |  |  |  |  |
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |  |  |  |  |  |
Contingent consideration fair value |  | $ 6,388,000 |  |  | $ 9,960,000 | $ 0
Contingent Consideration | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 |  |  |  |  |  |
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |  |  |  |  |  |
Contingent consideration fair value |  | $ 6,388,000 |  |  | 9,960,000 |
Bluenica Corporation |  |  |  |  |  |
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |  |  |  |  |  |
Earn-out payment installment period | 4 years |  |  |  |  |
Bluenica Corporation | Minimum | Fair Value, Inputs, Level 3 |  |  |  |  |  |
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |  |  |  |  |  |
Fair value inputs probability of payment |  | 93.50% |  |  |  |
Bluenica Corporation | Maximum | Fair Value, Inputs, Level 3 |  |  |  |  |  |
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |  |  |  |  |  |
Fair value inputs probability of payment |  | 98.50% |  |  |  |
FreshTemp | Minimum | Fair Value, Inputs, Level 3 |  |  |  |  |  |
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |  |  |  |  |  |
Fair value inputs probability of payment |  | 25.00% |  |  |  |
FreshTemp | Maximum | Fair Value, Inputs, Level 3 |  |  |  |  |  |
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |  |  |  |  |  |
Fair value inputs probability of payment |  | 100.00% |  |  |  |
SMART Temps | Maximum | Fair Value, Inputs, Level 3 |  |  |  |  |  |
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |  |  |  |  |  |
Fair value inputs probability of payment |  | 0.00% |  |  |  |
Estimate of Fair Value Measurement | Contingent Consideration | Fair Value, Measurements, Recurring |  |  |  |  |  |
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |  |  |  |  |  |
Contingent consideration fair value |  | $ 6,388,000 |  |  | $ 9,960,000 |
Estimate of Fair Value Measurement | Bluenica Corporation | Contingent Consideration | Fair Value, Measurements, Recurring |  |  |  |  |  |
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |  |  |  |  |  |
Contingent consideration fair value | $ 10,400,000 | 6,000,000 |  |  |  |
Estimate of Fair Value Measurement | FreshTemp | Contingent Consideration | Fair Value, Measurements, Recurring |  |  |  |  |  |
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |  |  |  |  |  |
Contingent consideration fair value |  | 400,000 |  | $ 1,300,000 |  |
Estimate of Fair Value Measurement | SMART Temps | Contingent Consideration | Fair Value, Measurements, Recurring |  |  |  |  |  |
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] |  |  |  |  |  |
Contingent consideration fair value |  | $ 0 | $ 10,000 |  |  |

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