Severance Costs (Detail) (USD $) In Thousands, unless otherwise specified	0 Months Ended	12 Months Ended	15 Months Ended	3 Months Ended
	Dec. 03, 2013 Chief Executive Officer [Member]	Dec. 31, 2013 Chief Executive Officer [Member]	Mar. 31, 2014 Management [Member]	Mar. 31, 2014 Severance [Member]	Mar. 31, 2013 Severance [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs	$ 714		$ 716
Transition Costs		201
Restructuring Reserve [Roll Forward]
Balance at beginning of year				1,142	126
Provision for additional expense				129	0
Payments and adjustments				(572)	(27)
Balance at end of period				$ 699	$ 99