XML 62 R48.htm IDEA: XBRL DOCUMENT v3.5.0.2
Summary of Norwegian Kroner (NOK) Denominated Borrowings Outstanding (Parenthetical) (Detail)
3 Months Ended
Jun. 30, 2016
Mar. 31, 2016
3.81% January 2014 notes    
Debt [Line Items]    
Debt instrument interest rate [1] 3.81% 3.81%
Debt Instrument Maturity Period [1] January 2014  
5.38% May 2012 notes    
Debt [Line Items]    
Debt instrument interest rate [1] 5.38% 5.38%
Debt Instrument Maturity Period [1] May 2012  
[1] Notes require semi-annual principal payments.