Goodwill and Intangibles - Schedule of Indefinite Lived Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Indefinite-lived Intangible Assets [Line Items]
Goodwill, Gross Carrying Value	$ 7,247	$ 7,290	$ 7,247
Goodwill, Accumulated Impairment Loss	(7,247)	(2,044)	(7,247)
Goodwill, Net Carrying Value	0	5,246	0
Indefinite-lived intangible assets, Gross Carrying Value	7,907	7,950	7,907
Indefinite-lived intangible assets, Accumulated Impairment Loss	(7,657)	(2,454)	(7,657)
Indefinite-lived intangible assets, Net Carrying Value	250	5,496	250
Trademark [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, Trademark, Gross Carrying Value	660	660	660
Indefinite-lived intangible assets, Trademark, Accumulated Impairment Loss	(410)	(410)	(410)
Indefinite-lived intangible assets, Trademark, Net Carrying Value	$ 250	$ 250	$ 250