Debt - Schedule of Debt (Parenthetical) (Details)	1 Months Ended	3 Months Ended
	Jan. 31, 2021 USD ($)	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)	Mar. 31, 2022 EUR (€)	Mar. 31, 2022 CAD ($)	Dec. 31, 2021 USD ($)
Debt Instrument [Line Items]
Long-term Debt		$ 1,264,525,000				$ 1,237,545,000
Loss on early extinguishment of of debt		0	$ 30,368,000
Long-term Debt		$ 1,229,017,000
Senior Notes | Minimum
Debt Instrument [Line Items]
Senior Notes, redemption notice days		10 days
Senior Notes | Maximum
Debt Instrument [Line Items]
Senior Notes, redemption notice days		60 days
2026 Senior Notes
Debt Instrument [Line Items]
Debt, interest rate		5.50%		5.50%	5.50%
Debt, maturity date		Jan. 15, 2026
2029 Senior Notes
Debt Instrument [Line Items]
Debt, interest rate	5.125%	5.125%		5.125%	5.125%
Debt, face amount	$ 875,000,000
Debt, maturity date	Feb. 01, 2029
Long-term Debt	$ 860,517,000
Loss on early extinguishment of of debt	$ 30,368,000
Canadian Joint RCF - C$160 Million
Debt Instrument [Line Items]
Debt, interest rate		2.38%		2.38%	2.38%
Line of credit, maximum borrowing capacity					$ 160,000,000
Line of credit facility, remaining borrowing capacity		$ 72,931,000			91,100,000
Long-term Debt		54,017,000			67,500,000
Line of credit, letters of credit outstanding, amount		$ 1,093,000			1,400,000
Canadian Joint RCF - C$160 Million | Canadian Dollar Borrowings Rate Option 2
Debt Instrument [Line Items]
Debt, description of variable basis spread		designated prime rate
Canadian Joint RCF - C$160 Million | Canadian Dollar Borrowings Rate Option 1
Debt Instrument [Line Items]
Debt, description of variable basis spread		banker’s acceptance
Canadian Joint RCF - C$160 Million | US Dollar Borrowings Rate Option 1a
Debt Instrument [Line Items]
Debt, description of variable basis spread		federal funds rate
Debt, variable basis spread		0.50%
Canadian Joint RCF - C$160 Million | US Dollar Borrowings Rate Option 1b
Debt Instrument [Line Items]
Debt, description of variable basis spread		Adjusted Term SOFR for a one month tenor
Debt, variable basis spread		1.00%
Canadian Joint RCF - C$160 Million | US Dollar Borrowings Rate Option 1c
Debt Instrument [Line Items]
Debt, description of variable basis spread		bank’s applicable reference rate for U.S. dollar loans
Canadian Joint RCF - C$160 Million | US Dollar Borrowings Rate Option 2
Debt Instrument [Line Items]
Debt, description of variable basis spread		Adjusted Term SOFR
Canadian Joint RCF - C$160 Million | Minimum | Canadian Dollar Borrowings Rate Option 1
Debt Instrument [Line Items]
Debt, variable basis spread		1.20%
Canadian Joint RCF - C$160 Million | Minimum | US Dollar Borrowings Rate Option 2
Debt Instrument [Line Items]
Debt, variable basis spread		1.20%
Canadian Joint RCF - C$160 Million | Maximum | Canadian Dollar Borrowings Rate Option 1
Debt Instrument [Line Items]
Debt, variable basis spread		1.45%
Canadian Joint RCF - C$160 Million | Maximum | US Dollar Borrowings Rate Option 2
Debt Instrument [Line Items]
Debt, variable basis spread		1.45%
German Joint RCF - EUR 200 Million
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity | €				€ 200,000,000
Debt, description of variable basis spread		Euribor
Debt, amount of debt supporting bank guarantees		$ 13,912,000		12,500,000
Line of credit facility, remaining borrowing capacity		$ 208,108,000		187,500,000
German Joint RCF - EUR 200 Million | Minimum
Debt Instrument [Line Items]
Debt, variable basis spread		1.05%
German Joint RCF - EUR 200 Million | Maximum
Debt Instrument [Line Items]
Debt, variable basis spread		2.00%
Peace River Credit Facility - C$60 Million
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity					60,000,000
Celgar Credit Facility - C$60.0 Million
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity					$ 60,000,000
Rosenthal Credit Facility - EUR 2.6 Million
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity | €				2,600,000
Debt, description of variable basis spread		three-month Euribor
Debt, variable basis spread		2.50%
Debt, amount of debt supporting bank guarantees		$ 2,833,000		€ 2,600,000
Line of credit facility, remaining borrowing capacity		$ 0