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Consolidated Financial Statements - Additional Information (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2018 USD ($) Dwelling Segment
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Number of loan concentration by bank to lessors and owners of Residential Buildings and Dwellings | Dwelling	2
Number of reportable segment | Segment	1
Non Residential Buildings and Dwellings [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Amount payable to lessors	$ 385,149
Amount payable to lessors in percentage	25.30%
Residential Buildings and Dwellings [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Amount payable to lessors	$ 155,690
Amount payable to lessors in percentage	10.20%
Maximum [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Percentage of insurance commission revenue of total revenue	1.00%
Maximum [Member] | WSP [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Percentage of insurance commission revenue of total revenue	1.00%

X

- Definition

Amount payable to lessors in respect of default on rental obligation.

+ References

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+ Details

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- Definition

Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]

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- Definition

Number of concentration by bank to lessors and owners of residential buildings and dwellings.

+ References

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- Definition

Percentage of amount payable to lessors.

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- Definition

Percentage of insurance commission revenue of total revenue.

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

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