XML 63 R51.htm IDEA: XBRL DOCUMENT v3.5.0.2
Fair Value Measurements - Schedule of carrying amounts and estimated fair values of financial instruments not recorded at fair value in the financial statements (Details) - Level 2 - USD ($)
$ in Millions
Sep. 30, 2016
Jun. 30, 2016
Carrying Value    
Carrying amounts and estimated fair values of financial instruments not recorded at fair value    
Long-term debt $ 609.6 $ 611.3
Company-owned life insurance 14.1 14.0
Fair Value    
Carrying amounts and estimated fair values of financial instruments not recorded at fair value    
Long-term debt 614.9 597.7
Company-owned life insurance $ 14.1 $ 14.0