XML 66 R41.htm IDEA: XBRL DOCUMENT v2.4.0.8
Long-Term Debt - Summary of Long-Term Debt (Parenthetical) (Detail)
3 Months Ended
Mar. 31, 2014
Senior Notes [Member]
 
Debt Instrument [Line Items]  
Fixed annual rate of interest 8.00%
Debt instrument, maturity date Jan. 30, 2020
Convertible Debt [Member]
 
Debt Instrument [Line Items]  
Debt instrument stated interest rate 3.875%
Debt instrument, maturity date Mar. 15, 2019