Income Taxes - (Provision) Benefit for Income Taxes from Continuing Operations (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
CURRENT:
Federal										$ (1,788)	$ (763)	$ (2,071)
State										(1,291)	(1,229)	(2,339)
Total current provision										(3,079)	(1,992)	(4,410)
DEFERRED:
Federal										321	8,866	2,588
State										(642)	(248)	3,289
Effect of federal tax law change	$ 5,200										5,229
Total deferred (provision) benefit										(321)	13,847	5,877
Total (provision) benefit for income taxes		$ (1,048)	$ (1,822)	$ (1,415)	$ 885	$ 8,430	$ 4,612	$ (866)	$ (321)	$ (3,400)	$ 11,855	$ 1,467