Significant Accounting Policies (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201802Member		us-gaap:AccountingStandardsUpdate201802Member
Accumulated Other Comprehensive Loss | Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Reclassification of stranded tax effects related to TCJA		$ 700
Retained Earnings | Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Reclassification of stranded tax effects related to TCJA		$ 700