Leases - Addititonal Information (Details)	Mar. 31, 2019 USD ($)
Lease Cost [Abstract]
Sale and leaseback transactions	$ 0
Leveraged leases	0
Leases not yet commenced	$ 0

Carrying amount as of the balance sheet date of leveraged lease investments which represent the aggregate amount of the estimated residual value of the lease assets and lease payments receivables, net of unearned and deferred income to be allocated over the lease term and non-recourse debt.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10))
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Name:	us-gaap_LeveragedLeaseInvestment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant