Debt and Financing Arrangements (Tables)

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Summary of Unsecured Credit Facility

Rates for the nine months ended September 30, 2018 and 2017 were as follows:

	Nine Months Ended
	September 30,
	2018	2017
Weighted average rates	3.07%	2.67%
Range of effective rates	2.37% - 5.25%	2.19% - 4.75%