Commitments and Contingencies - Asbestos Claimant and Settlement (Details) - Asbestos [Member]	6 Months Ended	12 Months Ended
	Jun. 30, 2015 USD ($) claimants	Dec. 31, 2014 USD ($) claimants
Loss Contingencies [Line Items]
Number of pending claims at the beginning of period	7,992	7,975
Loss Contingency, New Claims Filed, Number	173	210
Number of pending claims dismissed during period	1,187	155
Number of pending claims settled during period	11	38
Average settlement amount per claim during period | $	$ 13,505	$ 18,734
Total defense costs during period | $	$ 1,559,705	$ 2,800,000