Acquisition (Details Textual) - USD ($) $ in Millions	1 Months Ended	3 Months Ended	9 Months Ended	11 Months Ended
	Oct. 28, 2016	Sep. 30, 2017	Sep. 30, 2017	Sep. 30, 2017
Business Acquisition [Line Items]
Other Nonoperating Income			$ 0.2
Other Nonoperating Expense		$ 1.5
Western Pacific Enterprises [Member]
Business Acquisition [Line Items]
Business Acquisition, Transaction Costs		0.4	0.4	$ 0.4
Business Combination Compensation Expenses On Contingent Payment				0.3
Business Combination, Contingent Consideration, Liability		$ 2.2	$ 2.2	$ 2.2
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	$ 0.8
Payments to Acquire Businesses, Net of Cash Acquired	12.1
Escrow Deposit	$ 1.9