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Summary of Significant Accounting Policies - Additional Information (Details)
 3 Months Ended 6 Months Ended 12 Months Ended
Dec. 31, 2022
USD ($)
Jun. 30, 2020
USD ($)
Dec. 31, 2022
USD ($)
a
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Summary of Significant Accounting Policies [Line Items]          
Cash and cash equivalents $ 320,000,000.0   $ 320,000,000.0 $ 618,700,000  
Cash equivalents 228,400,000   228,400,000 532,900,000  
Other-than-temporary impairment charges on available-for-sale securities     0 0  
Allowance for doubtful accounts 10,000,000.0   $ 10,000,000.0 4,900,000  
Customer returns, allowances and earned discounts as a percentage of gross selling price     1.00%    
Reserve for customer accounts receivable, percentage     1.00%    
Reserve for customer deductions     $ 9,600,000 9,400,000  
Interest capitalization, construction in progress     7,300,000 3,800,000 $ 3,700,000
Depreciation expense     413,700,000 376,000,000.0 362,500,000
Incremental depreciation     $ 5,700,000 $ 4,700,000 4,500,000
Intangible asset, useful life, in years     8 years 1 month 6 days 8 years 6 months  
Goodwill 922,400,000   $ 922,400,000 $ 923,500,000 863,500,000
Goodwill and intangible asset impairment     0 0 0
Goodwill impairment 0   0 0 55,200,000
Deferred financing costs 17,900,000   $ 17,900,000 19,500,000  
Area leased under timberland cutting rights (acres) | a     580    
Depletion expense     $ 2,400,000 2,000,000.0 3,100,000
Software amortization expense       1,600,000 $ 1,100,000
Cloud computing arrangements 1,600,000   1,600,000 2,800,000  
Total operating lease obligations 306,800,000   $ 306,800,000 246,400,000  
Net Sales [Member] | Customer | Customer Concentration Risk [Member]          
Summary of Significant Accounting Policies [Line Items]          
Concentration risk, percentage     5.00%    
Other long-term assets          
Summary of Significant Accounting Policies [Line Items]          
Long-term lease costs capitalization (Cutting rights) 22,400,000   $ 22,400,000 21,000,000.0  
Net capitalized software costs 3,000,000.0   3,000,000.0 3,300,000  
New Accounting Pronouncements [Member] | Long-term debt          
Summary of Significant Accounting Policies [Line Items]          
Deferred financing costs 17,900,000   $ 17,900,000 $ 19,500,000  
Paper Reporting Unit [Member]          
Summary of Significant Accounting Policies [Line Items]          
Goodwill impairment   $ 55,200,000      
Customer Relationships          
Summary of Significant Accounting Policies [Line Items]          
Intangible asset, useful life, in years [1]     8 years 2 months 12 days 8 years 6 months  
Trademarks and Trade Names          
Summary of Significant Accounting Policies [Line Items]          
Intangible asset, useful life, in years [1]     7 years 2 months 12 days 8 years 4 months 24 days  
Minimum          
Summary of Significant Accounting Policies [Line Items]          
Term of senior credit facilities and notes, in years     10 years    
Minimum | Customer Relationships          
Summary of Significant Accounting Policies [Line Items]          
Intangible asset, useful life, in years     10 years    
Minimum | Trademarks and Trade Names          
Summary of Significant Accounting Policies [Line Items]          
Intangible asset, useful life, in years     5 years    
Maximum          
Summary of Significant Accounting Policies [Line Items]          
Term of senior credit facilities and notes, in years     30 years    
Maximum | Customer Relationships          
Summary of Significant Accounting Policies [Line Items]          
Intangible asset, useful life, in years     40 years    
Maximum | Trademarks and Trade Names          
Summary of Significant Accounting Policies [Line Items]          
Intangible asset, useful life, in years     20 years    
Foreign operations          
Summary of Significant Accounting Policies [Line Items]          
Cash and cash equivalents $ 1,500,000   $ 1,500,000 $ 1,200,000  
[1] In connection with the December 2021 acquisition of Advance Packaging, the Company recorded intangible assets of $47.3 million for customer relationships, $2.8 million for trade names, and $0.1 million for other intangibles. During 2022, the Company made a $1.4 million net adjustment based on the final valuation received for the intangible assets. This adjustment resulted in a revision to the original allocations for customer relationships and trade names. As of December 31, 2022, the revised allocations for customer relationships and trade names were $42.2 million and $6.5 million, respectively.