Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2014

Fair value of financial instruments [Abstract]

Fixed Rate Debt [Table Text Block]

			June 30,	December 31,
(In millions)			2014	2013
DTA bonds
	Carrying value	$	43.2	43.2
	Fair value		43.1	42.8
Unsecured notes issued in a private placement
	Carrying value		100.0	100.0
	Fair value		107.8	105.8