Recent Accounting Pronouncements Recent Accounting Pronouncements (Details) - USD ($) $ in Thousands	Jan. 01, 2019	Jan. 01, 2018
Lessee, Lease, Description [Line Items]
Cumulative effect of accounting change	$ 22	$ 571
Accounting Standards Update 2016-02
Lessee, Lease, Description [Line Items]
Cumulative effect of accounting change	$ 22

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.

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