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v3.19.1

Organization, Basis of Presentation and Significant Accounting Policies (Detail) $ in Thousands | Mar. 31, 2019 USD ($) agreement | Jan. 01, 2019 | Dec. 31, 2018 USD ($)
--- | --- | --- | ---
Lessee, Lease, Description [Line Items] |  |  |
Right-of-use assets from operating leases | $ 5,948 |  | $ 0
Operating lease liabilities | $ 5,948 |  | $ 0
Number of operating ground lease arrangements | agreement | 4 |  |
Minimum |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Discount rate, basis spread on variable rate |  | 2.50% |
Maximum |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Discount rate, basis spread on variable rate |  | 2.60% |
ASU 2016-02 |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Right-of-use assets from operating leases | $ 6,000 |  |
Operating lease liabilities | $ 6,000 |  |

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- Definition Lessee, Operating Lease, Discount Rate, Basis Spread On Variable Rate + References No definition available. + Details
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- Definition Lessee, Operating Lease, Number of Operating Lease Arrangements + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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