Inome Taxes (Income Tax Provision) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended										12 Months Ended
	Mar. 31, 2015		Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014		Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Mar. 31, 2015
Federal											$ 92	$ 0	$ 0
State											457	276	434
Foreign											1	0	0
Total current income tax provision											550	276	434
Deferred:
Federal											2,602	1,578	7,185
State											(363)	365	1,780
Foreign											0	0	0
Total deferred tax provision											2,239	1,943	8,965
Income tax provision	$ 79	[1]	$ 627	$ 1,411	$ 672	$ 1,738	[1]	$ (1,306)	$ 826	$ 961	$ 2,789	$ 2,219	$ 9,399

[1] Comparability affected by the decrease in fiscal 2015 and increase in fiscal 2014 in the valuation allowance related to the deferred tax asset which resulted in a decrease in fiscal 2015 and an increase in the provision for income taxes of $1.5 million and $1.3 million in the fourth quarter of fiscal 2015 and 2014, respectively.