The gross carrying amounts of intangible assets included within other long-term assets, the related accumulated amortization, the net carrying amounts and the weighted-average amortization periods of the Company’s intangible assets are listed in the following tables (in thousands, except amortization period):
|
|
March 31, 2017 |
|
|
|
Gross Carrying Amount |
|
|
Accumulated Amortization |
|
|
Net Carrying Amount |
|
|
Weighted- Average Amortization Period (Years) |
|
Customer relationships |
|
$ |
120,000 |
|
|
$ |
(44,161 |
) |
|
$ |
75,839 |
|
|
|
6.0 |
|
Licenses |
|
|
3,368 |
|
|
|
(989 |
) |
|
|
2,379 |
|
|
|
5.6 |
|
Non-compete agreements |
|
|
660 |
|
|
|
(660 |
) |
|
|
— |
|
|
|
1.0 |
|
Total intangible assets subject to amortization |
|
$ |
124,028 |
|
|
$ |
(45,810 |
) |
|
$ |
78,218 |
|
|
|
|
|
License (Indefinite-lived) |
|
$ |
4,427 |
|
|
$ |
— |
|
|
$ |
— |
|
|
|
|
|
|
|
December 31, 2016 |
|
|
|
Gross Carrying Amount |
|
|
Accumulated Amortization |
|
|
Net Carrying Amount |
|
|
Weighted- Average Amortization Period (Years) |
|
Customer relationships |
|
$ |
120,000 |
|
|
$ |
(36,593 |
) |
|
$ |
83,407 |
|
|
|
6.0 |
|
Licenses |
|
|
3,368 |
|
|
|
(807 |
) |
|
|
2,561 |
|
|
|
5.6 |
|
Non-compete agreements |
|
|
660 |
|
|
|
(495 |
) |
|
|
165 |
|
|
|
1.0 |
|
Total intangible assets subject to amortization |
|
$ |
124,028 |
|
|
$ |
(37,895 |
) |
|
$ |
86,133 |
|
|
|
|
|
License (Indefinite-lived) |
|
$ |
4,427 |
|
|
$ |
— |
|
|
$ |
— |
|
|
|
|
|
The aggregate amortization expense is as follows (in thousands):
|
|
Three months ended March 31, |
|
|
|
2017 |
|
|
2016 |
|
Amortization expense |
|
$ |
7,915 |
|
|
$ |
5,389 |
|
The following table sets forth the Company’s estimated aggregate amortization expense for each of the five years below (in thousands):
Year ended December 31, |
|
Amortization Expense |
|
2018 |
|
$ |
26,163 |
|
2019 |
|
|
18,489 |
|
2020 |
|
|
9,906 |
|
2021 |
|
|
75 |
|
2022 |
|
|
75 |
|