Goodwill And Other Intangible Assets (Narrative) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 1,242	$ 1,397	$ 2,484	$ 2,794