XML 53 R42.htm IDEA: XBRL DOCUMENT v3.10.0.1
Debt: Line of Credit (Details) - Line of Credit
$ in Millions
Jun. 30, 2018
USD ($)
Line of Credit  
Borrowings outstanding $ 18.4
Line of credit available for additional borrowings $ 31.6
Minimum  
Line of Credit  
Interest rate (as a percent) 3.73%
Maximum  
Line of Credit  
Interest rate (as a percent) 5.00%