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Our Portfolio - Financing Receivables, Investments and Real Estate - Summary of Anticipated Maturity Dates of Financing Receivables (Excluding Financing Receivable Held-for-Sale) and Investments and Weighted Average Yield (Detail)

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Our Portfolio - Financing Receivables, Investments and Real Estate - Summary of Anticipated Maturity Dates of Financing Receivables (Excluding Financing Receivable Held-for-Sale) and Investments and Weighted Average Yield (Detail) (USD $)
In Thousands, unless otherwise specified
 9 Months Ended
Sep. 30, 2014
Receivables [Abstract]  
Financing Receivables, payment due total $ 477,933
Financing Receivables, payment due in less than 1 year 9,825
Financing Receivables, payment due in 1-5 years 52,562
Financing Receivables, payment due in 5-10 years 28,356
Financing Receivables, payment due in more than 10 years 387,190
Financing Receivables, weighted average yield total 5.63%
Financing Receivables, weighted average yield in less than 1 year 6.02%
Financing Receivables, weighted average yield in 1-5 years 7.50%
Financing Receivables, weighted average yield in 5-10 years 5.05%
Financing Receivables, weighted average yield in more than 10 years 5.40%
Investments, payment due total 43,447
Investments, payment due in less than 1 year   
Investments, payment due in 1-5 years 14,434
Investments, payment due in 5-10 years   
Investments, payment due in more than 10 years $ 29,013
Investments, weighted average yield total 5.49%
Investments, weighted average yield in less than 1 year   
Investments, weighted average yield in 1-5 years 5.76%
Investments, weighted average yield in 5-10 years   
Investments, weighted average yield in more than 10 years 5.36%