Segment Reporting - Financial Segment Information (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 27, 2015	Jun. 28, 2015	Mar. 29, 2015	Dec. 31, 2014	Sep. 28, 2014	Jun. 29, 2014	Mar. 30, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Sales to Unaffiliated Customers
Sales to Unaffiliated Customers	$ 1,267,135	$ 1,242,592	$ 1,248,590	$ 1,206,052	$ 1,316,843	$ 1,262,503	$ 1,247,616	$ 1,190,032	$ 4,964,369	$ 5,016,994	$ 4,861,657
Income Before Income Taxes
Total before tax									327,946	325,707	292,709
Identifiable Assets
Identifiable Assets	4,020,269				4,193,911				4,020,269	4,193,911
Depreciation, Depletion and Amortization
Depreciation, depletion and amortization									213,161	198,718	197,671
Capital Expenditures
Capital Expenditures									192,295	177,076	172,442
Operating Segments
Total Revenue
Total Revenue									5,079,058	5,132,727	4,971,271
Intersegment Sales
Total Revenue									5,079,058	5,132,727	4,971,271
Sales to Unaffiliated Customers
Sales to Unaffiliated Customers									4,964,369	5,016,994	4,861,657
Income Before Income Taxes
Total before tax									327,946	325,707	292,709
Identifiable Assets
Identifiable Assets	4,020,269				4,193,911				4,020,269	4,193,911	3,974,523
Depreciation, Depletion and Amortization
Depreciation, depletion and amortization									213,161	198,718	197,671
Capital Expenditures
Capital Expenditures									192,295	177,076	172,442
Operating Segments | Consumer Packaging
Total Revenue
Total Revenue									2,126,916	1,966,989	1,898,690
Intersegment Sales
Total Revenue									2,126,916	1,966,989	1,898,690
Sales to Unaffiliated Customers
Sales to Unaffiliated Customers									2,122,559	1,962,897	1,893,533
Income Before Income Taxes
Total before tax									231,590	200,591	186,870
Identifiable Assets
Identifiable Assets	1,507,621				1,579,950				1,507,621	1,579,950	1,281,542
Depreciation, Depletion and Amortization
Depreciation, depletion and amortization									96,220	75,782	74,127
Capital Expenditures
Capital Expenditures									75,986	63,117	48,770
Operating Segments | Display and Packaging
Total Revenue
Total Revenue									608,064	668,407	640,541
Intersegment Sales
Total Revenue									608,064	668,407	640,541
Sales to Unaffiliated Customers
Sales to Unaffiliated Customers									606,111	666,815	638,573
Income Before Income Taxes
Total before tax									10,904	10,680	9,206
Identifiable Assets
Identifiable Assets	491,268				495,604				491,268	495,604	523,292
Depreciation, Depletion and Amortization
Depreciation, depletion and amortization									16,623	17,034	18,049
Capital Expenditures
Capital Expenditures									10,906	9,432	7,422
Operating Segments | Paper And Industrial Converted Products
Total Revenue
Total Revenue									1,835,896	2,010,160	1,958,762
Intersegment Sales
Total Revenue									1,835,896	2,010,160	1,958,762
Sales to Unaffiliated Customers
Sales to Unaffiliated Customers									1,729,786	1,902,448	1,858,880
Income Before Income Taxes
Total before tax									124,057	162,269	138,094
Identifiable Assets
Identifiable Assets	1,199,280				1,299,356				1,199,280	1,299,356	1,290,353
Depreciation, Depletion and Amortization
Depreciation, depletion and amortization									76,744	83,076	82,392
Capital Expenditures
Capital Expenditures									74,008	73,636	88,556
Operating Segments | Protective Solutions
Total Revenue
Total Revenue									508,182	487,171	473,278
Intersegment Sales
Total Revenue									508,182	487,171	473,278
Sales to Unaffiliated Customers
Sales to Unaffiliated Customers									505,913	484,834	470,671
Income Before Income Taxes
Total before tax									46,013	34,003	40,084
Identifiable Assets
Identifiable Assets	561,592				564,468				561,592	564,468	552,121
Depreciation, Depletion and Amortization
Depreciation, depletion and amortization									23,574	22,826	23,103
Capital Expenditures
Capital Expenditures									15,724	22,238	15,908
Operating Segments | Corporate
Income Before Income Taxes
Total before tax									(84,618)	(81,836)	(81,545)
Identifiable Assets
Identifiable Assets	$ 260,508				$ 254,533				260,508	254,533	327,215
Capital Expenditures
Capital Expenditures									15,671	8,653	11,786
Consolidation, Eliminations
Total Revenue
Total Revenue									114,689	115,733	109,614
Intersegment Sales
Total Revenue									114,689	115,733	109,614
Consolidation, Eliminations | Consumer Packaging
Total Revenue
Total Revenue									4,357	4,092	5,157
Intersegment Sales
Total Revenue									4,357	4,092	5,157
Consolidation, Eliminations | Display and Packaging
Total Revenue
Total Revenue									1,953	1,592	1,968
Intersegment Sales
Total Revenue									1,953	1,592	1,968
Consolidation, Eliminations | Paper And Industrial Converted Products
Total Revenue
Total Revenue									106,110	107,712	99,882
Intersegment Sales
Total Revenue									106,110	107,712	99,882
Consolidation, Eliminations | Protective Solutions
Total Revenue
Total Revenue									2,269	2,337	2,607
Intersegment Sales
Total Revenue									$ 2,269	$ 2,337	$ 2,607