v2.4.0.8
Debt - Revolver and Term Loans (Details) (USD $)
 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2013
Jun. 30, 2013
Jun. 30, 2012
Revolver
Sep. 30, 2013
Five-Year Term Loan
Jun. 30, 2013
Five-Year Term Loan
Sep. 30, 2013
Seven Year Term Loan
Jun. 30, 2013
Seven Year Term Loan
Sep. 30, 2013
Unsecured Term Loan Due August 27, 2018
Jun. 30, 2013
Unsecured Term Loan Due August 27, 2018
Sep. 30, 2013
Revolving Credit Facility and Term Loans
Sep. 30, 2012
Revolving Credit Facility and Term Loans
Sep. 30, 2013
Interest Rate Contract
Unsecured Term Loan Due August 27, 2018
Sep. 30, 2013
Interest Rate Contract
Unsecured Term Loan Due August 27, 2018
Sep. 30, 2013
Interest Rate Contract
Seven-Year Term Loan
Sep. 30, 2013
Interest Rate Contract
Seven-Year Term Loan
Debt                                
Outstanding borrowings     $ 850,000,000 $ 0 [1]   $ 275,000,000   $ 225,000,000 [2]   $ 350,000,000 [3]            
Interest rate (as a percent)         1.88% [4]   4.04% [2],[4]   3.25% [3],[4]              
Interest expense 3,584,000 8,532,000                     300,000 300,000 200,000 200,000
Unused commitment fee                     $ 300,000 $ 800,000        
[1] Includes the unused facility fee of $0.3 million and $0.8 million for the three and nine months ended September 30, 2013, respectively.
[2] Includes interest expense related to an interest rate hedge of $0.2 million for both the three and nine months ended September 30, 2013.
[3] Includes interest expense related to an interest rate hedge of $0.3 million for both the three and nine months ended September 30, 2013.
[4] Interest rate at September 30, 2013 gives effect to interest rate hedges and LIBOR floors, as applicable.