XML 48 R37.htm IDEA: XBRL DOCUMENT v3.4.0.3
Components of Long-Term Debt Obligations (Detail) - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Debt Instrument [Line Items]    
Total debt $ 507,000 $ 500,000
Less deferred debt issue costs (5,039) (5,228)
Long-term debt, net 501,961 494,772
Senior Bank Credit Facility    
Debt Instrument [Line Items]    
Credit facility 207,000 200,000
6.0% Senior Notes Due 2022    
Debt Instrument [Line Items]    
Senior notes $ 300,000 $ 300,000