Litigation, Claims, Contingencies and Other (Details) (USD $)	3 Months Ended
	Mar. 31, 2015 Agreement
Loss Contingencies [Line Items]
Environmental remediation liability	$ 4,700,000
Maximum potential amount of future payments	4,100,000
Guarantees relate to leased facilities expiry date	October 2017
Recourse provision to recover guarantees	0
Bargaining agreements	100
Self insurance reserve	20,200,000
Workers' compensation liability	12,800,000
Self insurance reserve for general and auto	7,400,000
Self insurance reserve on discontinued operations	4,400,000
Payments for self insurance	1,100,000
Self insurance reserve in which company is the primary obligor	7,700,000
Self insurance reserve in which company is the primary obligor for workers compensation	3,100,000
Self insurance reserve in which company is the primary obligor for general liability	4,600,000
Minimum
Loss Contingencies [Line Items]
General range on claims	200,000.0
Maximum
Loss Contingencies [Line Items]
General range on claims	$ 500,000.0