Lease Commitments And Contingencies - Narrative (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Lease Commitments and Contingencies:
Aggregate future net minimum lease payments	$ 2,480,000
Lease expense	$ 2,300,000	$ 2,500,000	$ 1,900,000