Aggregate Contractual Maturities of Indebtedness Outstanding, by Year (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Extinguishment Of Debt [Line Items]
Total	$ 591,296	$ 642,559
Recourse Indebtedness
Extinguishment Of Debt [Line Items]
2019	65,356
Thereafter	100,095
Total	165,451	165,451
Non Recourse Indebtedness
Extinguishment Of Debt [Line Items]
2019	559
2020	779
2021	39,196
Thereafter	385,311
Total	$ 425,845	$ 477,108

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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