General Business (Details)	Jan. 01, 2018 USD ($)
Accounting Standards Update 2016-01 [Member]
Impact from adoption of ASU	$ 1,100,000
Accounting Standards Update 2018 02 [Member]
Impact from adoption of ASU	$ 192,000

Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

No definition available.

Name:	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant