Fair value portion of investment in debt security measured at amortized cost (held-to-maturity).

No definition available.

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

- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611

+ Details

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- References

No definition available.

+ Details

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- Definition

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

+ 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=120391452&loc=d3e13212-122682

+ Details

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- Definition

Amount of investment in debt security measured at amortized cost (held-to-maturity), investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and investment in debt security measured at fair value with change in fair value recognized in net income (trading).

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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- Definition

Amount of investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121553693&loc=d3e26610-111562

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27232-111563

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(6))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

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

- References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Fair value portion of notes payable.

+ 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 210.5-02.19,20,22)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
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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Fair Value, Financial Assets and Liabilities Disclosed But Not Carried at Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	May 31, 2011
Investments in debt securities [Abstract]
Investments in debt securities, at amortized cost	$ 104,960	$ 6,547
Senior Notes [Member]
Debt instruments [Abstract]
Debt instrument, interest rate	5.875%	5.875%	5.875%
U.S. Treasury Bills [Member]
Investments in debt securities [Abstract]
Investments in debt securities, at amortized cost	$ 104,960
Foreign Government Obligations [Member]
Investments in debt securities [Abstract]
Investments in debt securities, at amortized cost		$ 6,547
Carrying Value [Member]
Investments in debt securities [Abstract]
Total	104,960	6,547
Debt instruments [Abstract]
Total	24,209	24,191
Carrying Value [Member] \| Senior Notes [Member]
Debt instruments [Abstract]
Senior notes	24,209	24,191
Carrying Value [Member] \| U.S. Treasury Bills [Member]
Investments in debt securities [Abstract]
Debt securities held-to-maturity	104,960	0
Carrying Value [Member] \| Foreign Government Obligations [Member]
Investments in debt securities [Abstract]
Debt securities held-to-maturity	0	6,547
Level 1 [Member] \| Fair Value [Member]
Investments in debt securities [Abstract]
Total	104,973	6,547
Level 1 [Member] \| Fair Value [Member] \| U.S. Treasury Bills [Member]
Investments in debt securities [Abstract]
Debt securities held-to-maturity	104,973	0
Level 1 [Member] \| Fair Value [Member] \| Foreign Government Obligations [Member]
Investments in debt securities [Abstract]
Debt securities held-to-maturity	0	6,547
Level 2 [Member] \| Fair Value [Member]
Debt instruments [Abstract]
Total	24,658	24,815
Level 2 [Member] \| Fair Value [Member] \| Senior Notes [Member]
Debt instruments [Abstract]
Senior notes	$ 24,658	$ 24,815