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Secondary Offering (Details) - Seidler Equity Partners III L.P. - Secondary Offering - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | Apr. 22, 2016 | Apr. 18, 2016 | Oct. 26, 2015 | Sep. 30, 2015
--- | --- | --- | --- | ---
Subsidiary Or Equity Method Investee [Line Items] |  |  |  |
Issuance of common shares (in shares) | 900 | 6,000 | 649 | 6,250
Common stock shares issued, price per share | $ 11.25 |  | $ 12.25 |
Issuance of common stock, net | $ 0 |  | $ 0 | $ 0
Selling, General and Administrative Expenses |  |  |  |
Subsidiary Or Equity Method Investee [Line Items] |  |  |  |
Offering expenses | $ 143 |  | $ 727 |

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