Quarterly report pursuant to Section 13 or 15(d)

Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements - Additional Information (Detail)

v2.4.0.8
Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements - Additional Information (Detail)
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2014
9.125% Senior Notes, due April 2018 [Member]
Dec. 31, 2013
9.125% Senior Notes, due April 2018 [Member]
Mar. 31, 2014
7.50% Senior Notes, due August 2020 [Member]
Dec. 31, 2013
7.50% Senior Notes, due August 2020 [Member]
Jul. 30, 2013
7.50% Senior Notes, due August 2020 [Member]
Supplemental Guarantor Financial Information [Line Items]            
Percentage of notes guaranteed by restricted subsidiaries   9.125% 9.125% 7.50% 7.50% 7.50%
Percentage of guaranteed subsidiaries by the parent companies 100.00%