Condensed Consolidated Balance Sheets (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012	Apr. 01, 2012	Dec. 31, 2011
Current assets
Cash and cash equivalents	$ 306,554	$ 337,039	$ 590,921	$ 584,088
Accounts receivable, net	307,020	297,976
Inventories, net	332,820	323,347
Prepaid expenses and other current assets	28,940	28,712
Prepaid taxes	28,711	27,160
Deferred tax assets	45,620	46,882
Assets held for sale	7,836	7,963
Total current assets	1,057,501	1,069,079
Property, plant and equipment, net	300,830	297,945
Goodwill	1,236,876	1,249,456
Intangibles assets, net	1,034,589	1,058,792
Investments in affiliates	1,947	2,066
Deferred tax assets	204	296
Other assets	61,780	61,863
Total assets	3,693,727	3,739,497	3,649,886
Current liabilities
Current borrowings	4,700	4,700
Accounts payable	67,383	75,165
Accrued expenses	74,200	65,064
Current portion of contingent consideration	21,931	23,693
Payroll and benefit-related liabilities	60,428	74,586
Accrued interest	9,576	9,418
Income taxes payable	17,221	15,573
Other current liabilities	6,029	6,206
Total current liabilities	261,468	274,405
Long-term borrowings	968,035	965,280
Deferred tax liabilities	409,289	419,266
Pension and other postretirement benefit liabilities	159,147	170,946
Noncurrent liability for uncertain tax positions	68,917	68,292
Other liabilities	51,794	59,771
Total liabilities	1,918,650	1,957,960
Total common shareholders' equity	1,772,248	1,778,950
Noncontrolling interest	2,829	2,587
Total equity	1,775,077	1,781,537	1,721,846	1,982,783
Total liabilities and equity	3,693,727	3,739,497
Parent Company
Current assets
Cash and cash equivalents	47,103	70,860	94,646	114,531
Accounts receivable, net	2,126	2,147
Prepaid expenses and other current assets	8,174	7,769
Prepaid taxes	13,969	11,079
Deferred tax assets	13,824	13,987
Total current assets	85,196	105,842
Property, plant and equipment, net	7,108	7,258
Investments in affiliates	5,258,917	5,226,567
Deferred tax assets	58,342	59,644
Other assets	33,127	33,937
Total assets	5,442,690	5,433,248
Current liabilities
Accounts payable	80,318	80,495
Accrued expenses	16,655	11,338
Payroll and benefit-related liabilities	23,230	24,633
Accrued interest	9,570	9,413
Other current liabilities	662	598
Total current liabilities	130,435	126,477
Long-term borrowings	968,035	965,280
Pension and other postretirement benefit liabilities	103,398	114,257
Noncurrent liability for uncertain tax positions	13,730	13,131
Other liabilities	2,454,844	2,435,153
Total liabilities	3,670,442	3,654,298
Total common shareholders' equity	1,772,248	1,778,950
Total equity	1,772,248	1,778,950
Total liabilities and equity	5,442,690	5,433,248
Guarantor Subsidiaries
Current assets
Cash and cash equivalents		1,989
Accounts receivable, net	8,725	774,280
Inventories, net	204,547	202,748
Prepaid expenses and other current assets	5,406	5,294
Deferred tax assets	25,204	27,130
Assets held for sale	2,739	2,738
Total current assets	246,621	1,014,179
Property, plant and equipment, net	174,734	168,451
Goodwill	702,949	702,947
Intangibles assets, net	768,170	782,631
Investments in affiliates	1,258,723	1,281,201
Other assets	3,055,799	2,707,264
Total assets	6,206,996	6,656,673
Current liabilities
Accounts payable	93,566	873,754
Accrued expenses	24,705	20,471
Current portion of contingent consideration	21,172	21,115
Payroll and benefit-related liabilities	9,509	19,799
Other current liabilities	427	1,131
Total current liabilities	149,379	936,270
Deferred tax liabilities	417,847	427,146
Pension and other postretirement benefit liabilities	37,131	37,269
Noncurrent liability for uncertain tax positions	28,556	28,440
Other liabilities	358,989	35,543
Total liabilities	991,902	1,464,668
Total common shareholders' equity	5,215,094	5,192,005
Total equity	5,215,094	5,192,005
Total liabilities and equity	6,206,996	6,656,673
Non-Guarantor Subsidiaries
Current assets
Cash and cash equivalents	259,451	264,190	496,275	469,557
Accounts receivable, net	423,521	511,609
Inventories, net	145,029	136,492
Prepaid expenses and other current assets	15,360	15,649
Prepaid taxes	14,742	19,217
Deferred tax assets	6,950	6,810
Assets held for sale	5,097	5,225
Total current assets	870,150	959,192
Property, plant and equipment, net	118,988	122,236
Goodwill	533,927	546,509
Intangibles assets, net	266,419	276,161
Investments in affiliates	21,210	21,379
Deferred tax assets	3,105	3,197
Other assets	20,528	720,184
Total assets	1,834,327	2,648,858
Current liabilities
Current borrowings	4,700	4,700
Accounts payable	23,822	114,140
Accrued expenses	32,840	33,255
Current portion of contingent consideration	759	2,578
Payroll and benefit-related liabilities	27,689	30,154
Accrued interest	6	5
Income taxes payable	17,221	18,709
Other current liabilities	5,298	5,522
Total current liabilities	112,335	209,063
Deferred tax liabilities	52,685	54,664
Pension and other postretirement benefit liabilities	18,618	19,420
Noncurrent liability for uncertain tax positions	26,631	26,721
Other liabilities	287,712	991,327
Total liabilities	497,981	1,301,195
Total common shareholders' equity	1,333,517	1,345,076
Noncontrolling interest	2,829	2,587
Total equity	1,336,346	1,347,663
Total liabilities and equity	1,834,327	2,648,858
Eliminations
Current assets
Accounts receivable, net	(127,352)	(990,060)
Inventories, net	(16,756)	(15,893)
Prepaid taxes		(3,136)
Deferred tax assets	(358)	(1,045)
Total current assets	(144,466)	(1,010,134)
Investments in affiliates	(6,536,903)	(6,527,081)
Deferred tax assets	(61,243)	(62,545)
Other assets	(3,047,674)	(3,399,522)
Total assets	(9,790,286)	(10,999,282)
Current liabilities
Accounts payable	(130,323)	(993,224)
Income taxes payable		(3,136)
Other current liabilities	(358)	(1,045)
Total current liabilities	(130,681)	(997,405)
Deferred tax liabilities	(61,243)	(62,544)
Other liabilities	(3,049,751)	(3,402,252)
Total liabilities	(3,241,675)	(4,462,201)
Total common shareholders' equity	(6,548,611)	(6,537,081)
Total equity	(6,548,611)	(6,537,081)
Total liabilities and equity	$ (9,790,286)	$ (10,999,282)