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GOODWILL AND INTANGIBLE ASSETS (Tables) | 12 Months Ended
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Dec. 31, 2016
Goodwill [Line Items] |
Goodwill rollforward |
| Goodwill |  | Accumulated Impairment Loss |  | Net Goodwill
Balance at December 31, 2015 | $ | 486,720 |  |  | $ | (483,088 | ) |  | $ | 3,632 |
Acquisition of CompareCards | $ | 52,450 |  |  | — |  |  | $ | 52,450 |
Acquisition of SimpleTuition | $ | 375 |  |  | — |  |  | $ | 375 |
Balance at December 31, 2016 | $ | 539,545 |  |  | $ | (483,088 | ) |  | $ | 56,457 |
Schedule of balance of intangible assets, net | The balance of intangible assets, net is as follows (in thousands):
| December 31, 2016 |  | December 31, 2015
Intangible assets with indefinite lives | $ | 10,142 |  |  | $ | 10,142 |
Intangible assets with definite lives, net | 61,542 |  |  | 850 |
Total intangible assets, net | $ | 71,684 |  |  | $ | 10,992 |
Schedule of intangible assets with definite lives | Intangible assets with definite lives relate to the following (dollars in thousands):
| Weighted Average Amortization Life |  | Cost |  | Accumulated Amortization |  | Net
Technology | 4.0 years |  | $ | 28,300 |  |  | $ | (659 | ) |  | $ | 27,641 |
Customer lists | 11.7 years |  | 28,100 |  |  | (639 | ) |  | 27,461 |
Trademarks and tradenames | 4.5 years |  | 5,342 |  |  | (937 | ) |  | 4,405 |
Tenant leases | 3.2 years |  | 2,030 |  |  | — |  |  | 2,030 |
Other | 3.0 years |  | 250 |  |  | (245 | ) |  | 5 |
Balance at December 31, 2016 |  |  | $ | 64,022 |  |  | $ | (2,480 | ) |  | $ | 61,542 |
| Weighted Average Amortization Life |  | Cost |  | Accumulated Amortization |  | Net
Customer lists | 10.0 years |  | $ | 1,000 |  |  | $ | (150 | ) |  | $ | 850 |
Other | 2.2 years |  | 1,087 |  |  | (1,087 | ) |  | — |
Balance at December 31, 2015 |  |  | $ | 2,087 |  |  | $ | (1,237 | ) |  | $ | 850 |
Schedule of amortization of intangible assets with definite lives for the next five years | Amortization of intangible assets with definite lives is computed on a straight-line basis and, based on balances as of December 31, 2016, future amortization is estimated to be as follows (in thousands):
| Amortization Expense
Year ending December 31, 2017 | $ | 11,175 |
Year ending December 31, 2018 | 11,037 |
Year ending December 31, 2019 | 10,783 |
Year ending December 31, 2020 | 9,935 |
Year ending December 31, 2021 | 3,270 |
Thereafter | 15,342 |
Total intangible assets with definite lives, net | $ | 61,542 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + 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 Reference 2: 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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