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Special Dividend - Additional Information (Details) $ / shares in Units, $ in Millions | Mar. 09, 2017 USD ($) $ / shares
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Equity [Abstract] |
Cash dividend (in dollars per share) | $ / shares | $ 3.00
Cash dividend, subordinated debentures (in dollars per share) | $ / shares | $ 5.00
Interest rate of subordinated debentures | 6.00%
Decrease in stockholders' equity | $ 458.7
Increase in long-term debt | 284.5
Decrease in cash | $ 174.2

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- Definition The increase (decrease) in stockholders' equity during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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