| Amortization expense related to intangible assets with definite lives |
The following table summarizes the components of gross and net intangible asset balances (in thousands):
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September 30, 2020 |
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December 31, 2019 |
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Gross
Carrying
Amount |
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Accumulated
Impairment |
|
Accumulated
Amortization |
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Net Book
Value |
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Gross
Carrying
Amount |
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Accumulated
Impairment |
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Accumulated
Amortization |
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Net Book
Value |
| Intangible assets with definite lives: |
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| Technology |
$ |
110,139 |
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|
$ |
(12,459) |
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|
$ |
(61,380) |
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$ |
36,300 |
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$ |
108,400 |
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|
$ |
(6,035) |
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$ |
(55,408) |
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$ |
46,957 |
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| Customer related |
92,178 |
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(50) |
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(47,737) |
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44,391 |
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90,351 |
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(50) |
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(40,527) |
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49,774 |
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| Trade names |
46,437 |
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(3,595) |
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(30,071) |
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12,771 |
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45,874 |
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(3,237) |
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(25,355) |
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17,282 |
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| Internally developed software |
13,281 |
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— |
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(12,794) |
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487 |
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13,281 |
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— |
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(12,606) |
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675 |
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| Patents |
2,750 |
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(133) |
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(2,617) |
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— |
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2,692 |
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(133) |
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(2,559) |
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— |
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| Service agreements |
1,190 |
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— |
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(1,109) |
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81 |
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1,190 |
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— |
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(1,079) |
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111 |
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| Definite-lived intangible assets |
$ |
265,975 |
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$ |
(16,237) |
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$ |
(155,708) |
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$ |
94,030 |
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$ |
261,788 |
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$ |
(9,455) |
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$ |
(137,534) |
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$ |
114,799 |
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| Amortization expense |
Amortization expense related to intangible assets with definite lives was as follows (in thousands):
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Three Months Ended
September 30, |
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Nine Months Ended
September 30, |
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2020 |
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2019 |
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2020 |
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2019 |
| Technology |
$ |
8,162 |
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$ |
1,719 |
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$ |
11,572 |
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$ |
5,186 |
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| Customer related |
2,204 |
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2,159 |
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6,468 |
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6,509 |
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| Trade names |
1,767 |
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1,487 |
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4,700 |
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|
4,476 |
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| Internally developed software |
51 |
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|
359 |
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188 |
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1,369 |
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| Patents |
— |
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20 |
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— |
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|
60 |
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| Service agreements |
$ |
10 |
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$ |
102 |
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30 |
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|
307 |
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| Total amortization |
$ |
12,194 |
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$ |
5,846 |
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$ |
22,958 |
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$ |
17,907 |
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| Expected amortization expense related to amortizable intangible assets |
Expected amortization expense related to definite-lived amortizable intangible assets is as follows (in thousands):
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| Three months ending December 31, 2020 |
$ |
5,264 |
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| 2021 |
20,186 |
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| 2022 |
16,765 |
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| 2023 |
15,806 |
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| 2024 |
13,877 |
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| 2025 |
13,261 |
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| Thereafter |
8,871 |
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| Total expected amortization expense |
$ |
94,030 |
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