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Summary of Significant Accounting Policies - IPO (Details) - USD ($) $ / shares in Units, $ in Millions | Apr. 26, 2016 | Mar. 29, 2016
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IPO |  |
Initial Public Offering |  |
Share price for IPO (in dollars per share) |  | $ 15.00
Issuance of stock (in shares) |  | 4,700,000
Net proceeds from IPO |  | $ 70.6
Over-Allotment Option |  |
Initial Public Offering |  |
Share price for IPO (in dollars per share) | $ 15.00 |
Issuance of stock (in shares) | 502,618 |

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