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Shareholders' Equity - Preferred stock authorized for issuance (Details) | Jun. 30, 2018 $ / shares shares
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Voting Preferred Stock |
Class of Stock [Line Items] |
Preferred Stock, shares authorized | shares | 12,500,000.0
Preferred Stock, par value (in USD per share) | $ / shares | $ 0
Nonvoting Preferred Stock |
Class of Stock [Line Items] |
Preferred Stock, shares authorized | shares | 12,500,000.0
Preferred Stock, par value (in USD per share) | $ / shares | $ 0

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- Definition Face amount per share of no-par value preferred stock nonredeemable or redeemable solely at the option of the issuer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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