v3.3.0.814
Debt - Long-Term Debt (Detail) - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Debt Instrument [Line Items]    
Long-term debt $ 408,868 $ 383,904
Current maturities of long-term debt 55,078 30,074
Long-term debt, net of current maturities 353,790 353,830
2021 notes    
Debt Instrument [Line Items]    
Long-term debt 350,000 350,000
2013 facility    
Debt Instrument [Line Items]    
Long-term debt 55,000 30,000
Other long-term debt    
Debt Instrument [Line Items]    
Long-term debt $ 3,868 $ 3,904