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Goodwill and Intangible Assets (Tables) | 3 Months Ended
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Mar. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Changes in Carrying Amount of Goodwill | The changes in the carrying amount of goodwill for the three months ended March 31, 2020, by reportable business segment, were as follows:
| FMT |  | HST |  | FSDP |  | IDEX
Goodwill | $ | 599,646 |  |  | $ | 981,592 |  |  | $ | 399,138 |  |  | $ | 1,980,376 |
Accumulated goodwill impairment losses | (20,721 | ) |  | (149,820 | ) |  | (30,090 | ) |  | (200,631 | )
Balance at December 31, 2019 | 578,925 |  |  | 831,772 |  |  | 369,048 |  |  | 1,779,745 |
Foreign currency translation | (1,643 | ) |  | (8,856 | ) |  | (2,278 | ) |  | (12,777 | )
Acquisitions | 63,374 |  |  | — |  |  | — |  |  | 63,374 |
Acquisition adjustments | — |  |  | 1,631 |  |  | — |  |  | 1,631 |
Balance at March 31, 2020 | $ | 640,656 |  |  | $ | 824,547 |  |  | $ | 366,770 |  |  | $ | 1,831,973 |
Schedule of Gross Carrying Value and Accumulated Amortization For Each Major Class of Intangible Asset | The following table provides the gross carrying value and accumulated amortization for each major class of intangible asset at March 31, 2020 and December 31, 2019:
| At March 31, 2020 |  |  |  | At December 31, 2019
| Gross Carrying Amount |  | Accumulated Amortization |  | Net |  | Weighted Average Life |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net
Amortized intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |
Patents | $ | 6,735 |  |  | $ | (5,428 | ) |  | $ | 1,307 |  |  | 11 |  | $ | 6,678 |  |  | $ | (5,276 | ) |  | $ | 1,402 |
Trade names | 127,840 |  |  | (66,305 | ) |  | 61,535 |  |  | 16 |  | 123,062 |  |  | (64,938 | ) |  | 58,124 |
Customer relationships | 302,284 |  |  | (101,098 | ) |  | 201,186 |  |  | 13 |  | 275,575 |  |  | (96,252 | ) |  | 179,323 |
Unpatented technology | 116,387 |  |  | (45,215 | ) |  | 71,172 |  |  | 13 |  | 101,721 |  |  | (43,561 | ) |  | 58,160 |
Other | 700 |  |  | (595 | ) |  | 105 |  |  | 10 |  | 700 |  |  | (578 | ) |  | 122 |
Total amortized intangible assets | 553,946 |  |  | (218,641 | ) |  | 335,305 |  |  |  |  | 507,736 |  |  | (210,605 | ) |  | 297,131 |
Indefinite-lived intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |
Banjo trade name | 62,100 |  |  | — |  |  | 62,100 |  |  |  |  | 62,100 |  |  | — |  |  | 62,100 |
Akron Brass trade name | 28,800 |  |  | — |  |  | 28,800 |  |  |  |  | 28,800 |  |  | — |  |  | 28,800 |
Total intangible assets | $ | 644,846 |  |  | $ | (218,641 | ) |  | $ | 426,205 |  |  |  |  | $ | 598,636 |  |  | $ | (210,605 | ) |  | $ | 388,031 |

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