Commitments and Contingencies - Asbestos Damages Sought (Details) - Asbestos [Member] $ in Millions	3 Months Ended
	Mar. 31, 2017 USD ($) claimants
Compensatory and Punitive Damages [Member] | Range 1 [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	$ 0.0
Compensatory and Punitive Damages [Member] | Range 1 [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	0.6
Compensatory and Punitive Damages [Member] | Range 2 [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	0.6
Compensatory and Punitive Damages [Member] | Range 2 [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	5.0
Compensatory and Punitive Damages [Member] | Range 3 [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	5.0
Compensatory Only Damages [Member] | Range 1 [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	0.0
Compensatory Only Damages [Member] | Range 1 [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	0.6
Compensatory Only Damages [Member] | Range 2 [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	0.6
Compensatory Only Damages [Member] | Range 2 [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	5.0
Compensatory Only Damages [Member] | Range 3 [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	5.0
Punitive Only Damages [Member] | Range 1 [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	0.0
Punitive Only Damages [Member] | Range 1 [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	2.5
Punitive Only Damages [Member] | Range 2 [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	2.5
Punitive Only Damages [Member] | Range 2 [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	5.0
Punitive Only Damages [Member] | Range 3 [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	$ 5.0
Pending Litigation [Member] | Compensatory Only Damages [Member]
Loss Contingencies [Line Items]
Number of pending claims seeking specific amounts of damages | claimants	60
Pending Litigation [Member] | Compensatory Only Damages [Member] | Range 1 [Member]
Loss Contingencies [Line Items]
Number of pending claims seeking specific amounts of damages | claimants	2
Pending Litigation [Member] | Compensatory Only Damages [Member] | Range 2 [Member]
Loss Contingencies [Line Items]
Number of pending claims seeking specific amounts of damages | claimants	20
Pending Litigation [Member] | Compensatory Only Damages [Member] | Range 3 [Member]
Loss Contingencies [Line Items]
Number of pending claims seeking specific amounts of damages | claimants	38
Pending Litigation [Member] | Punitive Only Damages [Member]
Loss Contingencies [Line Items]
Number of pending claims seeking specific amounts of damages | claimants	0