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Business Combination - Pro Forma Information (Details) - OMT, Inc. - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended
--- | --- | ---
Jan. 07, 2016 | Mar. 31, 2016 | Mar. 31, 2015
Business Acquisition [Line Items] |  |  |
Revenue |  | $ 32,124 | $ 17,152
Net income |  | $ 8,877 | $ (474)
Basic earnings per share (in USD per share): |  | $ 0.43 | $ (0.02)
Diluted earnings per share (in USD per share): |  | $ 0.40 | $ (0.02)
Pro forma adjustment for share-based compensation expense of OMT |  |  | $ 300
Pro forma adjustment for additional intangible amortization expense |  | $ 200 | $ 2,100
Pro forma adjustment for license revenue recognized by OMT in the current period prior to the acquisition | $ 2,500 |  |

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