Earnings Per Share - Narrative (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Earnings Per Share [Abstract]
Common stock shares that have been excluded from the per share calculation	1,547,814	2,033,632	1,962,265
Dilutive shares excluded due to net loss	149,453	47,258