Description of Business (Details)
$ / shares in Units, $ in Thousands |
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12 Months Ended |
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Mar. 11, 2015
USD ($)
$ / shares
shares
|
Feb. 20, 2015 |
Dec. 31, 2015
USD ($)
office
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Dec. 31, 2014
USD ($)
|
Dec. 31, 2013
USD ($)
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| Description of Business and Basis of Presentation |
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| Stock split conversion ratio |
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0.50
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| Proceeds from the issuance of common stock in initial public offering, net of underwriting discounts and commissions |
|
|
$ 69,518
|
$ 0
|
$ 0
|
| Deferred offering costs reclassified to additional paid-in capital |
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|
$ 3,782
|
$ 0
|
$ 0
|
| IPO |
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| Description of Business and Basis of Presentation |
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| Shares issued during period | shares |
6,500,000
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| Shares issued price per share (in usd per share) | $ / shares |
$ 11.50
|
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|
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| Proceeds from the issuance of common stock in initial public offering, net of underwriting discounts and commissions |
$ 69,500
|
|
|
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| Deferred offering costs reclassified to additional paid-in capital |
$ 3,800
|
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| Shares issued upon conversion | shares |
14,848,824
|
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| United Kingdom |
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| Description of Business and Basis of Presentation |
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| Number of offices | office |
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1
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