XML 22 R61.htm IDEA: XBRL DOCUMENT v3.20.1
Debt and Credit Arrangements - Foreign Facilities (Details) - Foreign facilities - USD ($)
$ in Millions
Mar. 31, 2020
Dec. 31, 2019
Debt Instrument    
Foreign facilities $ 0.7 $ 4.4
Revolving Credit Facility    
Debt Instrument    
Line of credit remaining borrowing amount 20.8 23.1
Letters of credit outstanding $ 34.9 $ 12.6
Weighted average interest rate (percent) 1.40% 1.30%