The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Total cost of shares repurchased divided by the total number of shares repurchased.

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Number of shares that have been repurchased during the period and are being held in treasury.

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Related Party Transactions - Additional Information (Detail) - $ / shares	1 Months Ended	12 Months Ended
	Feb. 28, 2018	Nov. 03, 2018	Nov. 04, 2017
Related Party Transaction [Line Items]
Repurchased shares of common stock		123,838	7,341
TLT Incorporation [Member]
Related Party Transaction [Line Items]
Percentage of ownership interest		50.00%
Walden Woods South LLC [Member]
Related Party Transaction [Line Items]
Percentage of ownership interest		31.30%
Walden Woods South LLC [Member] \| Majority Shareholder [Member]
Related Party Transaction [Line Items]
Percentage of ownership interest		51.00%
President [Member]
Related Party Transaction [Line Items]
Repurchased shares of common stock	100,000
Purchase price of common stock	$ 21.00
President [Member] \| TLT Incorporation [Member] \| Minimum [Member]
Related Party Transaction [Line Items]
Percentage of ownership interest		24.75%
President [Member] \| TLT Incorporation [Member] \| Maximum [Member]
Related Party Transaction [Line Items]
Percentage of ownership interest		49.50%
Executive Vice President [Member] \| TLT Incorporation [Member] \| Minimum [Member]
Related Party Transaction [Line Items]
Percentage of ownership interest		49.50%
Executive Vice President [Member] \| TLT Incorporation [Member] \| Maximum [Member]
Related Party Transaction [Line Items]
Percentage of ownership interest		57.75%