Summary Of Significant Accounting Policies Newly Adopted and Recently Issued Accounting Pronouncements (Details) $ in Thousands	Jan. 01, 2018 USD ($)
Accounting Policies [Abstract]
Adoption of ASU 2017-05, recognition of deferred gain	$ 835

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.

No definition available.

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