Goodwill and Other Intangible Assets (Goodwill) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Goodwill and Intangible Assets [Abstract]
Goodwill, Impairment Loss	$ 0
Goodwill
Goodwill, beginning of year	132,631,000	$ 98,562,000
Acquired goodwill	0	34,069,000
Goodwill, end of year	$ 132,631,000	$ 132,631,000