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Derivative Financial Instruments and Fair Value Measurements (Tables)
3 Months Ended
Dec. 31, 2017
Derivative Financial Instruments and Fair Value Measurements  
Notional principle, fixed rates and related expiration dates of outstanding interest rate swap agreements

 

December 31, 2017

 

Notional Amount
(in millions)

 

Fixed
Rate

 

Expiration
Date

 

$

300.0

 

1.63

%

June 2018

 

300.0

 

1.54

%

September 2018

 

 

September 30, 2017

 

Notional Amount
(in millions)

 

Fixed
Rate

 

Expiration
Date

 

$

300.0

 

1.63

%

June 2018

 

300.0

 

1.54

%

September 2018