Debt - Analysis of Extinguishment or Modification of Debt (Detail) (USD $)	0 Months Ended	9 Months Ended
	Aug. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Debt Disclosure [Abstract]
Refinancing fees paid to creditors, including arrangement fee, classified as extinguishment	$ 567,000
Deferred financing costs on extinguished debt	726,000
Debt discount on extinguished debt	300,000
Total	1,593,000	0	1,593,000
Deferred Finance Costs and Unamortized Discount	700,000
Debt Instrument, Unamortized Discount		$ 17,202,000		$ 19,955,000