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

No definition available.

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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

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

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Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ 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 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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- Details

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- Details

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Borrowings (Australian NAB Corporate Term Loan (AU)) (Narrative) (Details) - AUD ($) $ in Millions			12 Months Ended
	Mar. 15, 2019	Dec. 17, 2018	Dec. 31, 2019
Australian NAB Corporate Loan Facility Tier 1 [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			$ 66.5
Spread on variable interest rate		0.95%
Maturity date			Jun. 30, 2019
Australian NAB Corporate Loan Facility Tier 2 [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			$ 5.0
Spread on variable interest rate		1.90%
Australian NAB Corporate Loan Facility Tier 3 [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 120.0
Maturity date			Dec. 31, 2023
Australian NAB Corporate Loan Facility Tier 3 [Member] \| Bank Guarantee Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 5.0
Spread on variable interest rate	1.85%
Australian NAB Corporate Loan Facility Tier 3 [Member] \| Core Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 40.0
Australian NAB Corporate Loan Facility Tier 3 [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 80.0
Minimum [Member] \| Australian NAB Corporate Loan Facility Tier 3 [Member]
Debt Instrument [Line Items]
Spread on variable interest rate	0.85%
Maximum [Member] \| Australian NAB Corporate Loan Facility Tier 3 [Member]
Debt Instrument [Line Items]
Spread on variable interest rate	1.30%