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Debt and Credit Arrangements - Additional Information (Detail) € in Millions |  |  |  |  |  | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 26, 2020 USD ($) | Apr. 17, 2020 USD ($) | Aug. 14, 2019 USD ($) | Apr. 25, 2019 USD ($) | Aug. 22, 2016 | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2020 EUR (€) | Dec. 22, 2020 USD ($) | Sep. 30, 2020 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt to earnings before Interest, Taxes and Depreciation ratio |  | 225.00% |  |  |  |  |  |  |  |  |
Line of credit utilized borrowing capacity |  |  |  |  |  | $ 25,400,000 |  |  |  |  |
Line of credit remaining borrowing capacity |  |  |  |  |  | 39,600,000 |  |  |  |  |
Letters of credit outstanding amount |  |  |  |  |  | 100,000 |  |  |  |  |
Proceeds from long-term debt |  |  |  |  |  | 90,847,000 | $ 93,036,000 | $ 76,030,000 |  |  |
Aggregate maturities of long-term debt for 2021 |  |  |  |  |  | 22,600,000 |  |  |  |  |
Aggregate maturities of long-term debt for 2022 |  |  |  |  |  | 1,000,000.0 |  |  |  |  |
Aggregate maturities of long-term debt for 2023 |  |  |  |  |  | 800,000 |  |  |  |  |
Aggregate maturities of long-term debt for 2024 |  |  |  |  |  | 26,100,000 |  |  |  |  |
Aggregate maturities of long-term debt there after |  |  |  |  |  | 5,400,000 |  |  |  |  |
Interest paid |  |  |  |  |  | 1,900,000 | 2,000,000.0 | $ 1,800,000 |  |  |
Total outstanding guarantees |  |  |  |  |  | 9,800,000 |  |  |  |  |
Letter of credit outstanding |  |  |  |  |  | 8,000,000.0 |  |  |  |  |
Corporate Aircraft [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit utilized borrowing capacity |  |  |  |  |  | $ 0 |  |  |  |  |
Line of credit outstanding amount |  |  |  |  |  |  |  |  |  | $ 8,100,000 |
Outstanding letters of credit, current |  |  |  |  |  |  |  |  |  | $ 1,400,000 |
Debt instrument, face amount |  |  |  |  |  |  |  |  |  |  | $ 6,800,000
U.S. [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest rate for Line of credit |  |  |  |  |  | 1.325% |  |  | 1.325% |  |
Asia Pacific [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Restricted cash used to secure bank debt |  |  |  |  |  | $ 600,000 | $ 300,000 |  |  |  |
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] |  |  |  |  |  |  |  |  |  |  |
Increased borrowing capacity |  | $ 65,000,000.0 |  |  |  |  |  |  |  |  |
Extended debt instrument date |  | Jun. 30, 2024 |  |  | Jun. 30, 2021 |  |  |  |  |  |
Line of credit utilized borrowing capacity |  |  |  |  |  | $ 1,100,000 |  |  | € 1.0 |  |
Expiration date |  |  |  |  |  | May 31, 2021 |  |  |  |  |
Interest rate |  |  |  |  |  | 3.00% |  |  | 3.00% |  |
Austrian Subsidiary [Member] | Line Credit [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Proceeds from long-term debt | $ 600,000 |  |  |  |  |  |  |  |  |  |
Interest rate | 1.273% |  |  |  |  |  |  |  |  |  |
Polish Subsidiary [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Borrowings |  |  |  |  |  | $ 6,700,000 |  |  |  |  |
Interest rate for Line of credit |  |  |  |  |  | 1.269% |  |  | 1.269% |  |
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 |  |  |  |  |  | $ 5,300,000 |  |  |  |  |
Expiration date |  |  |  |  |  | Jun. 30, 2024 |  |  |  |  |
Interest rate for Line of credit |  |  |  |  |  | 1.145% |  |  | 1.145% |  |
Indonesian Subsidiary [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit utilized borrowing capacity |  |  |  |  |  | $ 6,700,000 |  |  |  |  |
Outstanding letters of credit, current |  |  |  |  |  | 800,000 |  |  |  |  |
Expiration date |  |  |  | Apr. 30, 2024 |  |  |  |  |  |  |
Proceeds from long-term debt |  |  |  | $ 8,000,000.0 |  |  |  |  |  |  |
Interest rate |  |  |  | 3.501% |  |  |  |  |  |  |
New Zealand Subsidiary {Member} |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Outstanding letters of credit, current |  |  |  |  |  | $ 4,400,000 |  |  |  |  |
Expiration date |  |  | Aug. 26, 2021 |  |  |  |  |  |  |  |
Proceeds from long-term debt |  |  | $ 5,300,000 |  |  |  |  |  |  |  |
Interest rate |  |  | 3.90% |  |  | 3.25% |  |  | 3.25% |  |

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- Definition The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(13)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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