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Revenue from Contracts with Customers - Summary of Revenue from Contracts with Customers (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | $ 113,761 | $ 120,459 | $ 308,506 | $ 378,838
United States and Puerto Rico |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 72,390 | 78,855 | 198,844 | 249,329
China |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 14,365 | 10,979 | 35,192 | 32,886
Brazil |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 7,353 | 9,486 | 18,261 | 27,653
Mexico |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 7,693 | 8,532 | 21,247 | 25,920
Germany |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 1,532 | 1,785 | 4,662 | 4,544
Poland |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 1,346 | 1,376 | 3,452 | 4,882
Other |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 9,082 | 9,446 | 26,848 | 33,624
Operating Segments | Mobile Solutions |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 70,371 | 73,071 | 181,292 | 230,590
Operating Segments | Mobile Solutions | United States and Puerto Rico |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 37,116 | 40,147 | 94,482 | 129,116
Operating Segments | Mobile Solutions | China |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 12,785 | 9,109 | 31,203 | 27,580
Operating Segments | Mobile Solutions | Brazil |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 7,100 | 9,414 | 17,815 | 27,432
Operating Segments | Mobile Solutions | Mexico |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 4,454 | 4,700 | 11,746 | 15,144
Operating Segments | Mobile Solutions | Germany |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 1,400 | 1,768 | 4,401 | 4,490
Operating Segments | Mobile Solutions | Poland |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 1,342 | 1,371 | 3,441 | 4,868
Operating Segments | Mobile Solutions | Other |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 6,174 | 6,562 | 18,204 | 21,960
Operating Segments | Power Solutions |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 43,415 | 47,430 | 127,307 | 148,480
Operating Segments | Power Solutions | United States and Puerto Rico |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 35,299 | 38,750 | 104,455 | 120,445
Operating Segments | Power Solutions | China |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 1,580 | 1,870 | 3,989 | 5,306
Operating Segments | Power Solutions | Brazil |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 253 | 72 | 446 | 221
Operating Segments | Power Solutions | Mexico |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 3,239 | 3,832 | 9,501 | 10,776
Operating Segments | Power Solutions | Germany |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 132 | 17 | 261 | 54
Operating Segments | Power Solutions | Poland |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 4 | 5 | 11 | 14
Operating Segments | Power Solutions | Other |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 2,908 | 2,884 | 8,644 | 11,664
Intersegment Sales Eliminations |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | (25) | (42) | (93) | (232)
Intersegment Sales Eliminations | United States and Puerto Rico |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | (25) | (42) | (93) | (232)
Intersegment Sales Eliminations | China |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 0 | 0 | 0 | 0
Intersegment Sales Eliminations | Brazil |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 0 | 0 | 0 | 0
Intersegment Sales Eliminations | Mexico |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 0 | 0 | 0 | 0
Intersegment Sales Eliminations | Germany |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 0 | 0 | 0 | 0
Intersegment Sales Eliminations | Poland |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | 0 | 0 | 0 | 0
Intersegment Sales Eliminations | Other |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |
Net sales | $ 0 | $ 0 | $ 0 | $ 0

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130543-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
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