Indicates (true false) whether accounting standards update was adopted.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794

+ Details

Name:	us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateAdopted
Namespace Prefix:	us-gaap_
Data Type:	xbrli:booleanItemType
Balance Type:	na
Period Type:	instant

- Definition

Indicates transition method applied for adoption of accounting standards update. Acceptable values are "Retrospective", "Prospective", "Modified Retrospective" and "Modified Prospective".

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794

+ Details

Name:	us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateTransitionOptionElectedFixedList
Namespace Prefix:	us-gaap_
Data Type:	us-types:transitionOptionType
Balance Type:	na
Period Type:	instant

- Definition

Indicates (true false) whether practical expedients are elected for not reassessing whether any expired or existing contract is or contains lease, lease classification for expired or existing lease, and initial direct cost for any existing lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 10
-Section 65
-Paragraph 1
-Subparagraph (j)
-URI http://asc.fasb.org/extlink&oid=119364159&loc=SL77916155-209984

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 10
-Section 65
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=119364159&loc=SL77916155-209984

+ Details

Name:	us-gaap_LeasePracticalExpedientsPackage
Namespace Prefix:	us-gaap_
Data Type:	xbrli:booleanItemType
Balance Type:	na
Period Type:	duration

- 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

Name:	us-gaap_NewAccountingPronouncementEarlyAdoptionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the quantification of the effect of adopting the new accounting standard or change in accounting principle expected by the entity to have a significant effect on the entity's financial statements.

+ References

No definition available.

+ Details

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

- Definition

Indicates (true false) whether prior period was not restated when there is change in accounting principle or adoption of new accounting pronouncement. Excludes correction of error.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(4)
-URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 65
-Paragraph 4
-Subparagraph (d)(2)
-URI http://asc.fasb.org/extlink&oid=117331771&loc=SL75117418-158277

+ Details

Name:	us-gaap_NewAccountingPronouncementOrChangeInAccountingPrinciplePriorPeriodNotRestated
Namespace Prefix:	us-gaap_
Data Type:	xbrli:booleanItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201602Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201711Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201712Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201802Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201807Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

New Accounting Pronouncements - Recently Adopted Accounting Pronouncements (Details) - USD ($) $ in Thousands		3 Months Ended	9 Months Ended
	Jan. 01, 2019	Sep. 30, 2019	Sep. 30, 2019
ASU 2016-02
Recently Adopted Accounting Pronouncements
Accounting Standards Update adopted	true
ASU transition method	Modified Retrospective
ASU adoption, prior periods not restated		true	true
Lease, Practical Expedients, Package [true false]	true
ASU 2017-11
Recently Adopted Accounting Pronouncements
Accounting Standards Update adopted	true
Impact of adoption on financial statements		$ 0	$ 0
ASU 2017-12
Recently Adopted Accounting Pronouncements
Accounting Standards Update adopted	true
Impact of adoption on financial statements		0	0
ASU 2018-02
Recently Adopted Accounting Pronouncements
Accounting Standards Update adopted	true
Impact of adoption on financial statements		0	0
ASU 2018-07
Recently Adopted Accounting Pronouncements
Accounting Standards Update adopted	true
Impact of adoption on financial statements		$ 0	$ 0