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Debt and Credit Arrangements - Debt and Credit Arrangements (Detail) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Short-term debt |  |
Current portion of long-term debt | $ 1,448 | $ 1,448
Short-term debt | 2,312 | 2,763
Long-term debt |  |
Total long-term debt | 36,046 | 44,391
Less current portion | (1,448) | (1,448)
Total long-term debt, less current portion | 34,598 | 42,943
Total debt | 36,910 | 45,706
USD Denominated Long-term Debt [Member] |  |
Long-term debt |  |
Total long-term debt | 23,133 | 29,429
Australian Dollar Denominated Long-term Debt [Member] |  |
Long-term debt |  |
Total long-term debt | 194 | 1,081
Brazilian Real Denominated Long-term Debt [Member] |  |
Long-term debt |  |
Total long-term debt | 286 | 0
USD Denominated Long-term Debt at 2.71%, due in 2026 [Member] |  |
Long-term debt |  |
Total long-term debt | 12,433 | 13,881
Thailand Bhat Denominated Secured Notes Short Term Debt [Member] |  |
Short-term debt |  |
Short-term debt | $ 864 | $ 1,315

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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. 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 -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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