Restatement of Financial Statements (Impact of Restatement on Consolidated Statements of Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net Income	$ 16,528	$ (534)	$ 14,393	$ (4,548)
Total Comprehensive Income	16,590	$ (377)	14,518	$ (4,233)
Previously Reported [Member]
Net Income	16,861		13,849
Total Comprehensive Income	16,923		13,974
Adjustment [Member]
Net Income	(333)		544
Total Comprehensive Income	$ (333)		$ 544

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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