XML 40 R56.htm IDEA: XBRL DOCUMENT v2.4.0.6
Borrowings (Principal Repayments) (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Extinguishment of Debt [Line Items]    
2012 $ 53,996 $ 78,504
2013 342,817 304,645
2014 0 0
2015 0 0
2016 and beyond 917,848 932,089
Total $ 1,314,661 $ 1,315,238