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Earnings (Loss) Per Share and Stockholders' Equity (Stockholders' Equity Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 1 Months Ended | 3 Months Ended
--- | --- | --- | ---
Aug. 01, 2016 | Aug. 31, 2015 | Mar. 31, 2017 | Mar. 31, 2016
Earnings Per Share [Abstract] |  |  |  |
Public offering related to equity forward transaction, shares |  | 8,600,000 |  |
Forward rate per share |  | $ 25.25 |  |
Shares subject to forward sale agreement |  | 4,300,000 |  |
Optional shares available to underwriters |  | 1,290,000 |  |
Shares of common stock issued | 5,590,000 |  |  |
Proceeds from issuance of common stock | $ 134,700 |  | $ 3,717 | $ 3,740

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- Definition Represents the number of shares in connection with public offering under the equity forward transaction. + References No definition available. + Details
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- Definition The number of shares that the underwriters have an option to purchase for a definite time period after close of forward equity transaction. + References No definition available. + Details
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- Definition The per share price of the Company's stock at which the contract holder of the freestanding contract has the right to purchase or sell the Company's stock at a future date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 40 -Section 50 -Paragraph 5 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6445032&loc=d3e90205-114008 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(1) -URI http://asc.fasb.org/extlink&oid=6940734&loc=d3e22047-110879 + Details
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- Definition The maximum number of shares that could be issued to net share settle a contract, if applicable. If a contract does not have a fixed or determinable maximum number of shares that may be required to be issued, disclose the fact that a potentially infinite number of shares could be issued to settle the contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 40 -Section 50 -Paragraph 5 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6445032&loc=d3e90205-114008 + Details
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- Definition The cash inflow from the additional capital contribution to the entity. + 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 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585 + Details
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