Debt and Financing Arrangements (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016		Oct. 01, 2014	Sep. 27, 2013
Debt Instrument [Line Items]
Long-term debt	$ 36,250,000		$ 178,125,000	[1]
Financial Liabilities:
Effect of 1% in increase on borrowing rate (less than)	100,000
Interest Rate Swap [Member]
Debt Instrument [Line Items]
Amount of hedged item					$ 150,000,000
Notional amount of derivative	150,000,000		150,000,000		$ 150,000,000
Fixed interest rate of derivative					1.89%
Interest Rate Swap [Member] | Fair Value, Inputs, Level 2 [Member]
Financial assets:
Interest Rate Swap Asset	0		0
Financial Liabilities:
Interest Rate Swap Liability (Other Accrued Liabilities)	1,199,995		$ 1,841,970
Other, Net [Member]
Debt Instrument [Line Items]
Payments of financing costs	900,000	$ 900,000
Other, Net [Member] | Interest Rate Swap [Member]
Debt Instrument [Line Items]
Interest expense	$ 400,000	$ 600,000
LIBOR Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.99%
Term Loan and Revolving Facility [Member]
Debt Instrument [Line Items]
Partial repayment of debt	$ 41,900,000
Revolving Facility [Member]
Debt Instrument [Line Items]
Partial repayment of debt	40,000,000
Credit Agreement [Member]
Debt Instrument [Line Items]
Short-term debt	100,000,000
Credit Agreement [Member]
Debt Instrument [Line Items]
Additional principal amount available						$ 75,000,000
Revolving Facility [Member]
Debt Instrument [Line Items]
Principal amount						150,000,000
Long-term debt	20,800,000
Available borrowing capacity	129,200,000
Term Loan [Member]
Debt Instrument [Line Items]
Principal amount						150,000,000
Long-term debt	123,800,000
Annual principal repayments	$ 7,500,000
Swing Loans [Member]
Debt Instrument [Line Items]
Additional principal amount available						20,000,000
Letters of Credit [Member]
Debt Instrument [Line Items]
Additional principal amount available						$ 20,000,000

[1] Note: The condensed consolidated balance sheet at December 31, 2016 has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements.