| Summary of Estimated Useful Lives of Intangible Assets |
The estimated useful lives of intangible assets are as follows:
|
Intangible Asset |
|
Estimated Useful
Life |
|
Domain names |
|
5 Years |
|
Trademarks |
|
1 to 5 Years |
|
Acquired developed technology |
|
5 to 7 Years |
|
Customer relationships |
|
2 to 5 Years |
|
Patents |
|
3 to 11 Years |
|
Non-compete agreements |
|
1 to 3 Years |
Intangible assets consisted of the following:
|
|
|
December 31, 2018 |
|
|
|
|
Weighted-
Average
Remaining
Useful Life -
Years |
|
|
Gross
Carrying
Amount |
|
|
Accumulated
Amortization |
|
|
Net |
|
|
|
|
(in thousands, except years) |
|
|
Domain names |
|
|
1.6 |
|
|
$ |
5,414 |
|
|
$ |
4,283 |
|
|
$ |
1,131 |
|
|
Trademarks |
|
|
1.4 |
|
|
|
5,772 |
|
|
|
4,076 |
|
|
|
1,696 |
|
|
Acquired developed technology |
|
|
3.8 |
|
|
|
179,791 |
|
|
|
78,729 |
|
|
|
101,062 |
|
|
Customer relationships |
|
|
2.1 |
|
|
|
15,572 |
|
|
|
8,012 |
|
|
|
7,560 |
|
|
Patents |
|
|
6.9 |
|
|
|
19,710 |
|
|
|
5,105 |
|
|
|
14,605 |
|
|
|
|
|
|
|
|
$ |
226,259 |
|
|
$ |
100,205 |
|
|
$ |
126,054 |
|
|
|
|
December 31, 2017 |
|
|
|
|
Weighted-
Average
Remaining
Useful Life -
Years |
|
|
Gross
Carrying
Amount |
|
|
Accumulated
Amortization |
|
|
Net |
|
|
|
|
(in thousands except years) |
|
|
Domain names |
|
|
2.1 |
|
|
$ |
5,418 |
|
|
$ |
3,210 |
|
|
$ |
2,208 |
|
|
Trademarks |
|
|
2.3 |
|
|
|
5,772 |
|
|
|
2,701 |
|
|
|
3,071 |
|
|
Acquired developed technology |
|
|
4.7 |
|
|
|
180,396 |
|
|
|
45,435 |
|
|
|
134,961 |
|
|
Customer relationships |
|
|
2.6 |
|
|
|
15,558 |
|
|
|
3,506 |
|
|
|
12,052 |
|
|
Patents |
|
|
7.8 |
|
|
|
17,150 |
|
|
|
2,969 |
|
|
|
14,181 |
|
|
|
|
|
|
|
|
$ |
224,294 |
|
|
$ |
57,821 |
|
|
$ |
166,473 |
|
|