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Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]        
Change in Goodwill $ 0 $ 0 $ 0 $ 0
Goodwill, impairment 0 0 0 0
Intangible assets amortization expense $ 1,300,000 $ 1,400,000 $ 3,800,000 $ 4,100,000