Investments - Schedule of Loans Receivable (Parenthetical) (Details)	9 Months Ended
	Sep. 30, 2019 Land
Loans Receivable Disclosure [Line Items]
Number of land lease have option for lessee to purchase leased assets	2
Minimum
Loans Receivable Disclosure [Line Items]
Option for the lessee to repurchase the leased assets in year	2024
Maximum
Loans Receivable Disclosure [Line Items]
Option for the lessee to repurchase the leased assets in year	2025