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Goodwill and Intangible Assets, Net (Tables) | 12 Months Ended
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Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of changes in the carrying amount of goodwill, by segment | The annual changes in the carrying amount of goodwill, by segment, as of December 31, 2017 and 2018, were as follows, respectively:
(in thousands) | North America |  | Europe |  | Asia Pacific |  | Total
Balance as of January 1, 2017 |  |  |  |  |  |  |
Goodwill | $ | 96,154 |  |  | $ | 51,031 |  |  | $ | 1,375 |  |  | $ | 148,560 |
Accumulated impairment losses | (10,666 | ) |  | (13,415 | ) |  | — |  |  | (24,081 | )
| 85,488 |  |  | 37,616 |  |  | 1,375 |  |  | 124,479 |
Goodwill acquired | 10,066 |  |  | — |  |  | — |  |  | 10,066 |
Foreign exchange | 198 |  |  | 2,472 |  |  | 114 |  |  | 2,784 |
Reclassifications (1) | 3 |  |  | (192 | ) |  | — |  |  | (189 | )
Balance as of December 31, 2017 |  |  |  |  |  |  | 0 |
Goodwill | 106,421 |  |  | 53,311 |  |  | 1,489 |  |  | 161,221 |
Accumulated impairment losses | (10,666 | ) |  | (13,415 | ) |  | — |  |  | (24,081 | )
| 95,755 |  |  | 39,896 |  |  | 1,489 |  |  | 137,140 |
Goodwill acquired | 913 |  |  | — |  |  | — |  |  | 913 |
Foreign exchange | (233 | ) |  | (738 | ) |  | (145 | ) |  | (1,116 | )
Balance as of December 31, 2018 |  |  |  |  |  |  | 0 |
Goodwill | 107,101 |  |  | 52,573 |  |  | 1,344 |  |  | 161,018 |
Accumulated impairment losses | (10,666 | ) |  | (20,102 | ) |  | — |  |  | (30,768 | )
| $ | 96,435 |  |  | $ | 32,471 |  |  | $ | 1,344 |  |  | $ | 130,250 |
(1) During 2017, $3 thousand and $192 thousand was reclassified to other assets, with a corresponding $189 thousand decrease in goodwill related to the CG Visions and MS Decoupe acquisitions.
Schedule of changes in the carrying amounts of finite-lived intangible assets subject to amortization | The annual changes in the carrying amounts of patents, unpatented technologies, customer relationships and non-compete agreements and other intangible assets subject to amortization for the years ended December 31, 2018 and 2017 were as follows:
(in thousands) | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Patents |  |
Balance at January 1, 2017 | $ | 1,718 |  |  | $ | (528 | ) |  | $ | 1,190 |
Acquisition | 800 |  |  | — |  |  | $ | 800 |
Amortization | — |  |  | (187 | ) |  | (187 | )
Foreign exchange | 2 |  |  | — |  |  | 2 |
Removal of fully amortized assets | (170 | ) |  | 170 |  |  | — |
Balance at December 31, 2017 | 2,350 |  |  | (545 | ) |  | 1,805 |
Amortization | — |  |  | (107 | ) |  | (107 | )
Removal of fully amortized assets | (241 | ) |  | 241 |  |  | — |
Balance at December 31, 2018 | $ | 2,109 |  |  | $ | (411 | ) |  | $ | 1,698 |
(in thousands) | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Unpatented Technology |  |
Balance at January 1, 2017 | $ | 21,162 |  |  | $ | (9,003 | ) |  | $ | 12,159 |
Amortization | — |  |  | (1,976 | ) |  | (1,976 | )
Foreign exchange | 505 |  |  | — |  |  | 505 |
Balance at December 31, 2017 | 21,667 |  |  | (10,979 | ) |  | 10,688 |
Amortization | — |  |  | (2,557 | ) |  | (2,557 | )
Reclassifications (1) | 277 |  |  | — |  |  | 277 |
Foreign exchange | (90 | ) |  | $ | — |  |  | (90 | )
Removal of fully amortized assets | (1,192 | ) |  | 1,192 |  |  | — |
Balance at December 31, 2018 | $ | 20,662 |  |  | $ | (12,344 | ) |  | $ | 8,318 |
(1) Reclassifications in 2018 of $0.3 million in unpatented technology, with a corresponding reduction in other assets related to Technogrout asset acquisition.
(in thousands) | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Non-Compete Agreements, Trademarks and Other |  |
Balance at January 1, 2017 | $ | 6,727 |  |  | (4,100 | ) |  | 2,627 |
Acquisition | 9,260 |  |  | — |  |  | 9,260 |
Amortization | — |  |  | (2,495 | ) |  | (2,495 | )
Foreign exchange | 16 |  |  | — |  |  | 16 |
Removal of fully amortized assets | (3,778 | ) |  | 3,778 |  |  | — |
Balance at December 31, 2017 | 12,225 |  |  | (2,817 | ) |  | 9,408 |
Acquisition | 879 |  |  | — |  |  | 879 |
Amortization | — |  |  | (1,757 | ) |  | (1,757 | )
Reclassifications | (24 | ) |  | — |  |  | (24 | )
Removal of fully amortized asset | (855 | ) |  | 855 |  |  | — |
Balance at December 31, 2018 | $ | 12,225 |  |  | $ | (3,719 | ) |  | $ | 8,506 |
(in thousands) | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Customer Relationships |  |
Balance at January 1, 2017 | $ | 21,217 |  |  | (14,945 | ) |  | 6,272 |
Acquisition | 1,091 |  |  | — |  |  | 1,091 |
Amortization | — |  |  | (1,574 | ) |  | (1,574 | )
Reclassifications(1) | 626 |  |  | — |  |  | 626 |
Foreign exchange | 394 |  |  | — |  |  | 394 |
Removal of fully amortized assets | (5,650 | ) |  | 5,650 |  |  | — |
Balance at December 31, 2017 | 17,678 |  |  | (10,869 | ) |  | 6,809 |
Amortization | — |  |  | (1,430 | ) |  | (1,430 | )
Foreign exchange | (115 | ) |  | — |  |  | (115 | )
Balance at December 31, 2018 | $ | 17,563 |  |  | $ | (12,299 | ) |  | $ | 5,264 |
(1) During 2017, $0.6 million was reclassified to customer relationships with a corresponding $0.6 million decrease in other assets related to the MS Decoupe acquisition.
Schedule of estimated future amortization of intangible assets | At December 31, 2018, estimated future amortization of intangible assets was as follows: (in thousands)
2019 | $ | 5,319 |
2020 | 5,287 |
2021 | 4,807 |
2022 | 2,928 |
2023 | 2,124 |
Thereafter | 3,321 |
| $ | 23,786 |
Schedule of finite-lived intangible assets | Definite-lived and indefinite-lived assets, net, by segment as of December 31, 2018 and 2017 were as follows:
| December 31, 2017
| Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
(in thousands) |  |
Total Intangible Assets |  |
North America | $ | 30,775 |  |  | $ | (13,732 | ) |  | $ | 17,043 |
Europe | 23,762 |  |  | (11,479 | ) |  | 12,283 |
Total | $ | 54,537 |  |  | $ | (25,211 | ) |  | $ | 29,326 |
| At December 31, 2018
| Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
(in thousands) |  |
Total Intangible Assets |  |
North America | $ | 30,825 |  |  | $ | (16,002 | ) |  | $ | 14,823 |
Europe | 22,353 |  |  | (12,774 | ) |  | 9,579 |
Total | $ | 53,178 |  |  | $ | (28,776 | ) |  | $ | 24,402 |

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