Mortgage Notes Payable, Net - German Refinancing (Details) € in Millions, $ in Millions	Oct. 01, 2019	May 10, 2019 EUR (€) property	May 10, 2019 USD ($) property
Germany Properties \| Landesbank Hessen-Thuringen Girozentrale
Debt Instrument [Line Items]
Collateral, number of leased offices and industrial properties		5	5
Collateral, number of leased offices and industrial properties, previously encumbered		3	3
Germany Properties \| Landesbank Hessen-Thuringen Girozentrale \| Mortgage notes payable
Debt Instrument [Line Items]
Percentage fixed interest rate		80.00%	80.00%
Repayments of debt		€ 35.6	$ 40.0
Germany Properties \| Landesbank Hessen-Thuringen Girozentrale \| Mortgage notes payable \| Euribor
Debt Instrument [Line Items]
Proceeds from loans borrowed		€ 51.5	$ 57.9
Interest rate spread	1.55%	1.80%	1.80%
Germany \| Mortgage notes payable
Debt Instrument [Line Items]
Stated interest rate		1.80%	1.80%

Debt Instrument, Collateral, Number Of Leased Offices And Industrial Properties

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Debt Instrument, Collateral, Number Of Leased Offices And Industrial Properties, Previously Encumbered

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Contractual interest rate for funds borrowed, under the debt agreement.

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The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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