Commitments, Contingencies and Litigation Judgment (Details) (TMK IPSCO, USD $) In Millions, unless otherwise specified	1 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2013
TMK IPSCO
Loss Contingencies [Line Items]
Direct damages sought		$ 10.0
Damages awarded	5.2
Additional damages sought	$ 3.8