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Business Acquisitions (Details) - USD ($) $ in Thousands | Jan. 30, 2017 | Sep. 30, 2017 | Dec. 31, 2016
--- | --- | --- | ---
Current assets: |  |  |
Goodwill |  | $ 88,529 | $ 74,764
C1 Consulting LLC |  |  |
Business Acquisitions |  |  |
Maximum earnout period (in years) | 4 years |  |
Current assets: |  |  |
Accounts receivable and unbilled receivables | $ 3,820 |  |
Other current assets | 10 |  |
Total current assets | 3,830 |  |
Property and equipment | 206 |  |
Other non-current assets | 106 |  |
Intangible assets | 8,800 |  |
Goodwill | 12,626 |  |
Total assets acquired | 25,568 |  |
Current liabilities: |  |  |
Deferred revenue | 3,396 |  |
Accrued expenses and other current liabilities | 652 |  |
Total current liabilities | 4,048 |  |
Contingent consideration | 2,357 |  |
Total liabilities assumed | 6,405 |  |
Net assets acquired | $ 19,163 |  |
C1 Consulting LLC | Selling, general and administrative expenses |  |  |
Current liabilities: |  |  |
Transaction related costs |  | $ 500 |
C1 Consulting LLC | Non-competition agreements |  |  |
Current liabilities: |  |  |
Estimated useful life (in years) | 5 years |  |
C1 Consulting LLC | Customer relationships |  |  |
Current liabilities: |  |  |
Estimated useful life (in years) | 10 years |  |

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- Definition Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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