Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

 v2.3.0.11
Subsequent Events (Details) (USD $)
In Millions, unless otherwise specified
6 Months Ended 6 Months Ended
Aug. 05, 2011
Jun. 30, 2011
Jun. 30, 2010
Credit Facility No. 2 [Member]
Jun. 30, 2011
Credit Facility No. 2 [Member]
Jul. 01, 2011
Unsecured Line of Credit with Accordion Feature [Member]
Jun. 30, 2011
Unsecured Line of Credit [Member]
Jul. 01, 2011
Unsecured Line of Credit [Member]
Committed capacity       $ 262.0 $ 600.0 $ 400.0 $ 400.0
Spread over LIBOR           122.5  
Credit facility, maturity     November 2011     July 1, 2014  
Line of credit maturity period extension (years)           1  
Business Acquisition, Cost of Acquired Entity, Purchase Price $ 350.0 $ 73.9