Financial Instruments and Fair Value Measurement - Additional Information (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2015	Dec. 31, 2016
Derivative [Line Items]
Gross derivative asset	$ 4,400,000
Gross Derivative Liability	400,000
Long-term debt, fair value	2,241,500,000			$ 2,132,700,000
Long-term debt, carrying value	2,213,400,000			2,112,800,000
Anticipated reclassification of loss to earnings in the next twelve months	(3,800,000)
Derivative Contracts Designated as Hedging Instruments | Instruments in a Cash Flow Hedging Relationship | Interest Rate Swap
Derivative [Line Items]
Amounts excluded from the measure of effectiveness	0	$ 0
Amount of ineffectiveness related to changes in the fair value of derivatives	0	0
Derivative Contracts Designated as Hedging Instruments | Instruments in a Cash Flow Hedging Relationship | Commodity Contracts
Derivative [Line Items]
Amounts excluded from the measure of effectiveness	$ 0	0
Percentage of expected natural gas usage hedged, current year	50.00%
Percentage of Expected Natural Gas Usage Hedged In Next Fiscal Year	12.00%
Derivative Contracts Designated as Hedging Instruments | Instruments in a Cash Flow Hedging Relationship | Forward Exchange Contract
Derivative [Line Items]
Amounts excluded from the measure of effectiveness	$ 0	0
Amount of ineffectiveness related to changes in the fair value of derivatives	0	0
Notional amount of derivative	41,800,000			55,900,000
Amounts forecasted and reclassified into earnings no longer probable	$ 0	$ 0
Derivative Contracts Not Designated as Hedging Instruments | Maximum
Derivative [Line Items]
Foreign currency forward exchange contract, term	3 months		3 months
Derivative Contracts Not Designated as Hedging Instruments | Forward Exchange Contract
Derivative [Line Items]
Notional amount of derivative	$ 64,200,000			$ 68,100,000