Annual report pursuant to Section 13 and 15(d)

Quarterly Financial Information - Summary of Quarterly Results of Operations (Parenthetical) (Detail)

v2.4.1.9
Quarterly Financial Information - Summary of Quarterly Results of Operations (Parenthetical) (Detail) (USD $)
In Thousands, unless otherwise specified
0 Months Ended 3 Months Ended 12 Months Ended
Nov. 12, 2014
Dec. 31, 2014
Mar. 31, 2014
Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]        
Gain on debt extinguishment $ 5,300us-gaap_GainsLossesOnExtinguishmentOfDebt $ 5,300us-gaap_GainsLossesOnExtinguishmentOfDebt   $ 5,274us-gaap_GainsLossesOnExtinguishmentOfDebt
Impairment loss     $ 14,000us-gaap_AssetImpairmentCharges $ 14,238us-gaap_AssetImpairmentCharges