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Goodwill and Other Assets - Additional Information (Detail) - USD ($) | 1 Months Ended |  |
--- | --- | --- | ---
Feb. 28, 2006 | Sep. 30, 2017 | Sep. 30, 2016
Schedule Of Goodwill And Other Assets [Line Items] |  |  |
Goodwill |  | $ 25,900,000 | $ 9,900,000
Corporate Joint Venture [Member] |  |  |
Schedule Of Goodwill And Other Assets [Line Items] |  |  |
Acquired certain real estate and assets | $ 4,000,000 |  |
Great American Marina [Member] | Corporate Joint Venture [Member] |  |  |
Schedule Of Goodwill And Other Assets [Line Items] |  |  |
Acquired certain real estate and assets | 11,000,000 |  |
Prepaid Expenses and Other Current Assets [Member] |  |  |
Schedule Of Goodwill And Other Assets [Line Items] |  |  |
Real estate assets classified as held for sale |  | $ 0 | $ 850,000
Brunswick's Contribution [Member] | Corporate Joint Venture [Member] |  |  |
Schedule Of Goodwill And Other Assets [Line Items] |  |  |
Acquired certain real estate and assets | $ 7,000,000 |  |

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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + Details
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- Definition Carrying amount as of the balance sheet date of investments in land and buildings held for sale, excluding real estate considered to be inventory of the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(f)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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