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v3.20.1

Debt - Additional Information (Detail) - USD ($) |  | 1 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Mar. 23, 2020 | Mar. 31, 2020 | Feb. 27, 2020 | Oct. 01, 2019 | Sep. 30, 2019
Two HMA Manufacturing Plants |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Cash payment to acquire business | $ 9,800,000 |  |  |  |
BBVA Revolving Credit Facility |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Line of credit, maximum borrowing capacity |  | $ 30,000,000.0 |  |  |
BBVA Revolving Credit Facility | BBVA Credit Agreement |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Line of credit, maximum borrowing capacity |  |  |  | $ 54,700,000 | $ 10,000,000.0
Proceeds from lines of credit |  | 15,000,000.0 |  |  |
BBVA Term Loan |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Debt instrument, face amount |  | $ 82,000,000.0 |  |  |
BBVA Term Loan | BBVA Credit Agreement |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Debt instrument, face amount |  |  |  | 10,000,000.0 |
BBVA Term Loan | BBVA Credit Agreement | Interest rate swaps |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Notional amount |  |  | $ 26,300,000 | $ 5,900,000 |
Fixed percentage rate |  |  | 1.24% | 1.58% |

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