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Business acquisitions (Tables) | 12 Months Ended
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Dec. 31, 2016
Business Combinations [Abstract] |
Summary of consideration transferred | The following table summarizes all of the elements of purchase consideration for the transaction as of December 1, 2014.
Purchase price | $ | 67,500 |
Contingent consideration | 13,780 |
Economic, working capital and other closing adjustments | (13,513 | )
Total consideration | $ | 67,767 |

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- Definition Tabular disclosure of a material business combination completed during the period, including background, timing, and recognized assets and liabilities. This table does not include leveraged buyouts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1486-128463 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463 + Details
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