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Goodwill and Identifiable Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The following table summarizes the activity in the Company’s goodwill balance, as follows (in thousands):
| Total
Balance, December 31, 2016 | $ | 785,032 |
Goodwill acquired | 79,372 |
Effect of foreign currency translation | 64,589 |
Balance, December 31, 2017 | $ | 928,993 |
Summary of Acquired Intangible Assets | The Company’s acquired intangible assets are summarized as follows (in thousands):
| As of December 31, 2017 |  | As of December 31, 2016
| Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Customer relationships | $ | 73,875 |  |  | $ | (6,800 | ) |  | $ | 67,075 |  |  | $ | 21,200 |  |  | $ | (3,220 | ) |  | $ | 17,980 |
Developed technologies | 6,683 |  |  | (5,411 | ) |  | 1,272 |  |  | 6,497 |  |  | (3,891 | ) |  | 2,606 |
Trade name and other | 14,413 |  |  | (7,024 | ) |  | 7,389 |  |  | 12,566 |  |  | (4,909 | ) |  | 7,657 |
Total intangible assets | $ | 94,971 |  |  | $ | (19,235 | ) |  | $ | 75,736 |  |  | $ | 40,263 |  |  | $ | (12,020 | ) |  | $ | 28,243 |
Weighted-Average Useful Lives of Intangible Assets | The weighted-average useful lives of intangible assets at the time of acquisition were as follows:
| Weighted-Average Useful Lives
Customer relationships | 10
Developed technologies | 5
Trade name and other | 8
Estimated Future Amortization Expense | Estimated future amortization expense related to finite-lived intangible assets at December 31, 2017 is as follows (in thousands):
2018 | $ | 10,096 |
2019 | 8,599 |
2020 | 8,413 |
2021 | 8,311 |
2022 | 7,761 |
Thereafter | 32,556 |
Total | $ | 75,736 |

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- Definition Tabular disclosure of the characteristics, including initial carrying value, residual amount, weighted average useful life, of finite-lived intangible assets acquired during the period by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by nature or by their use in the operations of the company. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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