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Operating Leases (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Jun. 30, 2018	Jan. 01, 2019
Operating Leased Assets [Line Items]
Rental income	$ 71,600	$ 132,500
Right of use asset	27,106	27,106
Lease liability	27,855	27,855
Operating lease costs	600	1,300	$ 1,300
Cash paid for operating lease liabilities	$ 300	$ 500
Ground Lease 1
Operating Leased Assets [Line Items]
Discount rate (percent)				3.94%
Ground Lease 2
Operating Leased Assets [Line Items]
Discount rate (percent)				5.36%
ASU 2016-02
Operating Leased Assets [Line Items]
Right of use asset				$ 28,400
Lease liability				28,400
Deferred rent written off				$ 2,400

X

- Definition

The cumulative difference between the rental payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense over the term of the leased property by the lessor or lessee, respectively.

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Discount rate used by lessee to determine present value of operating lease payments.

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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

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Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

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Amount of lessee's right to use underlying asset under operating lease.

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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.

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No definition available.

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