XML 35 R23.htm IDEA: XBRL DOCUMENT v3.4.0.3
Fair Value of Financial Instruments (Details) - USD ($)
$ in Millions
Mar. 31, 2016
Dec. 31, 2015
Level 1 [Member]    
Fair Values of Financial Instruments [Abstract]    
Deferred compensation plans $ 4.0 $ 3.3