Goodwill And Other Intangible Assets Goodwill and Other Intangible Assets (Narative) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Goodwill [Line Items]
Goodwill, Impairment Loss	$ 0
Bank Susidiaries except The Commerce Bank of Oregon [Member]
Goodwill [Line Items]
Goodwill, Impairment Loss	0
The Commerce Bank Of Oregon [Member]
Goodwill [Line Items]
Goodwill, Impairment Loss	$ 1,000