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

No definition available.

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Namespace Prefix:	gnl_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ 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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Data Type:	xbrli:stringItemType
Balance Type:	na
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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_MortgagesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Balance Type:
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- Details

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Data Type:	na
Balance Type:
Period Type:

- Details

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Mortgage Notes Payable, Net - German Refinancing (Details) - Germany € in Millions			6 Months Ended
	Oct. 01, 2019	May 10, 2019 EUR (€) property	Jun. 30, 2019
Mortgage notes payable \| Euribor
Debt Instrument [Line Items]
Interest rate spread			1.80%
Landesbank Hessen-Thuringen Girozentrale
Debt Instrument [Line Items]
Collateral, number of leased offices and industrial properties \| property		5
Landesbank Hessen-Thuringen Girozentrale \| Mortgage notes payable
Debt Instrument [Line Items]
Percentage fixed interest rate			80.00%
Repayments of debt		€ 35.6
Landesbank Hessen-Thuringen Girozentrale \| Mortgage notes payable \| Euribor
Debt Instrument [Line Items]
Proceeds from loans borrowed		€ 51.5
Interest rate spread		1.80%
Forecast \| Mortgage notes payable \| Euribor
Debt Instrument [Line Items]
Interest rate spread	1.55%
Forecast \| Landesbank Hessen-Thuringen Girozentrale \| Mortgage notes payable \| Euribor
Debt Instrument [Line Items]
Interest rate spread	1.55%