| Goodwill and Acquired Intangible Assets |
GOODWILL AND ACQUIRED INTANGIBLE ASSETS
All goodwill is stated on a gross basis, as the Company has not recorded any impairment charges against goodwill. The following table reconciles the activity for goodwill by segment for the six months ended May 28, 2016:
| | | | | | | | | | | | | | | | | | Engine/Mobile Filtration | | Industrial/ Environmental Filtration | | Corporate | | Total | Goodwill at beginning of year | $ | 207,537 |
| | $ | 298,728 |
| | $ | — |
| | $ | 506,265 |
| Acquisition | — |
| | 3,408 |
| | 3,318 |
| | 6,726 |
| Currency translation adjustments | 6 |
| | (1,514 | ) | | — |
| | (1,508 | ) | Goodwill at end of period | $ | 207,543 |
| | $ | 300,622 |
| | $ | 3,318 |
| | $ | 511,483 |
|
The following table summarizes acquired intangibles by segment. Other acquired intangibles include parts manufacturer regulatory approvals, developed technology, patents and non-compete agreements:
| | | | | | | | | | | | | | | | | | Engine/Mobile Filtration | | Industrial/ Environmental Filtration | | Corporate | | Total | May 28, 2016 | | | | | | | | Indefinite Lived Intangibles: | | | | | | | | Trademarks - indefinite lived | $ | 783 |
| | $ | 74,867 |
| | $ | — |
| | $ | 75,650 |
| | | | | | | | | Finite Lived Intangibles: | | | | | | | | Trademarks, gross - finite lived | $ | 278 |
| | $ | 568 |
| | $ | — |
| | $ | 846 |
| Accumulated amortization | (139 | ) | | (442 | ) | | — |
| | (581 | ) | Trademarks, net - finite lived | $ | 139 |
| | $ | 126 |
| | $ | — |
| | $ | 265 |
| | | | | | | | | Customer relationships, gross | $ | 139,445 |
| | $ | 131,968 |
| | $ | — |
| | $ | 271,413 |
| Accumulated amortization | (23,963 | ) | | (43,791 | ) | | — |
| | (67,754 | ) | Customer relationships, net | $ | 115,482 |
| | $ | 88,177 |
| | $ | — |
| | $ | 203,659 |
| | | | | | | | | Other acquired intangibles, gross | $ | 11,243 |
| | $ | 60,453 |
| | $ | 5,300 |
| | $ | 76,996 |
| Accumulated amortization | (2,535 | ) | | (30,089 | ) | | — |
| | (32,624 | ) | Other acquired intangibles, net | $ | 8,708 |
| | $ | 30,364 |
| | $ | 5,300 |
| | $ | 44,372 |
| | | | | | | | | Total finite lived intangible assets, net | $ | 124,329 |
| | $ | 118,667 |
| | $ | 5,300 |
| | $ | 248,296 |
| | | | | | | | | Acquired intangible assets, less accumulated amortization | $ | 125,112 |
| | $ | 193,534 |
| | $ | 5,300 |
| | $ | 323,946 |
|
The following table summarizes estimated amortization expense: | | | | | Fiscal year 2016 | $ | 24,826 |
| Fiscal year 2017 | 24,689 |
| Fiscal year 2018 | 24,026 |
| Fiscal year 2019 | 23,818 |
| Fiscal year 2020 | 23,526 |
|
Amortization expense for the six months ended May 28, 2016 and May 30, 2015 was $12,395 and $12,523, respectively.
|