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Debt Arrangements - Additional Information (Detail) - USD ($) |  |  |  |  |  | 9 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Aug. 16, 2021 | Jan. 19, 2021 | Apr. 17, 2020 | Apr. 25, 2019 | Aug. 22, 2016 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Line of credit utilized borrowing capacity |  |  |  |  |  |  | $ 14,400,000 |  |
Debt to earnings before Interest, Taxes and Depreciation ratio |  |  |  | 2.25% |  |  |  |  |
Line of credit remaining borrowing capacity |  |  |  |  |  |  | 50,600,000 |  |
Letters of credit outstanding amount |  |  |  |  |  |  | 100,000 |  |
Proceeds from long-term debt | [1] |  |  |  |  |  | 68,975,000 | $ 68,789,000 |
U.S. [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Borrowings |  |  |  |  |  |  | $ 3,800,000 |  |
Expiration date |  |  |  |  |  |  | Jun. 30, 2024 |  |
Interest rate for Line of credit |  |  |  |  |  |  | 1.205% |  |
Asia Pacific [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Restricted cash used to secure bank debt |  |  |  |  |  |  | $ 200,000 |  | $ 600,000
LIBOR [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Interest rate of LIBOR plus |  |  |  | 1.125% |  |  |  |  |
LIBOR [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Interest rate of LIBOR plus |  |  |  | 1.50% |  |  |  |  |
Austrian Subsidiary [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  | 1.216% |  |
Increased borrowing capacity |  |  |  | $ 65,000,000 |  |  |  |  |
Extended debt instrument date |  |  |  | Jun. 30, 2024 |  | Jun. 30, 2021 |  |  |
Borrowings |  |  |  |  |  |  | $ 1,200,000 |  |
Expiration date |  |  |  |  |  |  | Jun. 30, 2024 |  |
Polish Subsidiary [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Borrowings |  |  |  |  |  |  | $ 6,300,000 |  |
Interest rate for Line of credit |  |  |  |  |  |  | 1.315% |  |
Polish Subsidiary [Member] | Warsaw Interbank Offer Rate [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Interest rate of LIBOR plus |  |  |  |  |  |  | 1.125% |  |
Expiration date |  |  |  |  |  |  | Jun. 30, 2024 |  |
Australian Subsidiary [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Borrowings |  |  |  |  |  |  | $ 3,100,000 |  |
Interest rate for Line of credit |  |  |  |  |  |  | 1.145% |  |
Expiration date |  |  |  |  |  |  | Jun. 30, 2024 |  |
Indonesian Subsidiary [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  | 3.501% |  |  |  |
Line of credit utilized borrowing capacity |  |  |  |  |  |  | $ 6,100,000 |  |
Outstanding letters of credit, current |  |  |  |  |  |  | 800,000 |  |
Expiration date |  |  |  |  | Apr. 30, 2024 |  |  |  |
Proceeds from long-term debt |  |  |  |  | $ 8,000,000.0 |  |  |  |
New Zealand Subsidiary {Member} |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Interest rate |  | 3.15% |  |  |  |  |  |  |
Line of credit utilized borrowing capacity |  |  |  |  |  |  | 3,700,000 |  |
Outstanding letters of credit, current |  |  |  |  |  |  | $ 200,000 |  |
Expiration date |  | Aug. 26, 2026 |  |  |  |  |  |  |
Proceeds from long-term debt |  | $ 3,800,000 |  |  |  |  |  |  |
Corporate Aircraft [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  | $ 6,800,000 |
Corporate Aircraft [Member] | Term Loan [Member] | PNC Equipment Finance, LLC [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  | $ 20,500,000 |  |  |  |  |  |
Debt instrument, payment terms |  |  | 120 months |  |  |  |  |  |
Interest rate |  |  | 2.744% |  |  |  |  |  |
Debt instrument, frequency of periodic payment |  |  | The loan is payable in 119 equal monthly installments |  |  |  |  |  |
Debt instrument, date of first required payment |  |  | Mar. 01, 2021 |  |  |  |  |  |
Debt instrument, description |  |  |  |  |  |  | The loan is payable in 119 equal monthly installments, which commenced on March 1, 2021 with a final payment of any outstanding principal and accrued interest due and payable on the final monthly payment date. |  |
Line of credit utilized borrowing capacity |  |  |  |  |  |  | $ 19,300,000 |  |
Outstanding letters of credit, current |  |  |  |  |  |  | $ 2,100,000 |  |
[1] | Non-cash investing and financing activities: The Company purchased a new corporate aircraft during the nine-month period ended September 30, 2021 with a term loan in the principal amount of $20.5 million. For further information regarding this transaction, refer to Note P, “Debt Arrangements.

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