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Equity (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended
--- | --- | ---
Jan. 21, 2017 | Mar. 31, 2017 | Dec. 31, 2016
Class of Stock [Line Items] |  |  |
Conversion of common units to common shares (in units/ shares) |  | 185,000 |
Common Stock Issued to Public Under At-the-Market Program |  |  |
Class of Stock [Line Items] |  |  |
Shares issued to the public |  | 546,782 |
Issuance of stock, weighted average price per share (in dollars per share) |  | $ 33.89 |
Net proceeds from shares issued |  | $ 18,300 |
Payments of stock issuance costs |  | 278 |
At-market stock, offering program established, remaining capacity |  | $ 71,500 |
Redeemable Convertible Preferred Stock |  |  |
Class of Stock [Line Items] |  |  |
Preferred stock, redemption price per share (in dollars per share) | $ 50.00 |  |
Stock redeemed or called during period value | $ 26,600 |  |
Issuance costs associated with redeemed preferred shares |  |  | $ 17

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- Definition The cash outflow for cost incurred directly with the issuance of an equity security. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585 + Details
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- Definition The excess of (1) fair value of the consideration transferred to the holders of the preferred stock over (2) the carrying amount of the preferred stock in the registrant's balance sheet, during the accounting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section S99 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27010884&loc=d3e42851-122695 + Details
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