Organization and Summary of Significant Accounting Policies Newly Adopted Accounting Pronouncements (Details) $ in Millions	12 Months Ended
Dec. 31, 2018 USD ($)
ASU 2016-02, Leases
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Expected right-of-use asset and liability for operating leases	$ 180.0

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