Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Concentration of Credit Risk
Expense for bad debts	$ 0.3	$ 0.4	$ 0.5
Allowance for doubtful accounts receivable	0.5	0.9	0.8
Receivables
Trade receivable sold under factoring agreement	5.8	9.1
Cash proceeds from sale of receivables	5.4	8.8
Administrative fees	$ 0.4	0.3
Inventories
Percentage of LIFO Inventory	40.00%
Cost valuation of inventory if FIFO had been used exclusively	$ 5.1	6.8	8.1
Liquidation of LIFO inventories decreased cost of sales and increased income before taxes	0.1	0.4	0.1
Property, Plant and Equipment
Capitalized Computer Software, Gross	4.1	2.1
Capitalized Computer Software, Amortization	0.5	0.3	0.1
Shipping and handling
Shipping and handling expenses	16.4	19.4	17.1
Cash and Cash Equivalents
Accrued capital expenditures excluded from investing activities	$ 6.6	$ 0.2	$ 0.5
Customer 1 [Member] | Sales [Member] | Customer Concentration Risk [Member]
Concentration of Credit Risk
Concentration risk percentage	4.00%
Maximum [Member] | Customer 2 [Member] | Sales [Member] | Customer Concentration Risk [Member]
Concentration of Credit Risk
Concentration risk percentage	3.00%
Brazil [Member] | Sales [Member] | Customer Concentration Risk [Member]
Concentration of Credit Risk
Concentration risk percentage	4.70%	7.30%	8.20%
Canada [Member] | Sales [Member] | Customer Concentration Risk [Member]
Concentration of Credit Risk
Concentration risk percentage	5.20%	4.20%	3.30%
Carrying (Reported) Amount, Fair Value Disclosure | Less unamortized deferred financing fees
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable, carrying amount	$ 100.0	$ 100.0
Estimate of Fair Value, Fair Value Disclosure | Less unamortized deferred financing fees
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable, fair value disclosure	$ 102.1	$ 106.8