CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 28, 2013	Dec. 29, 2012
Current assets
Cash and cash equivalents	$ 130,454	$ 109,685
Trade receivables, net	224,270	203,001
Inventories	87,146	88,470
Other current assets	105,153	83,601
Current assets of discontinued businesses	758	495
Total current assets	547,781	485,252
Property, plant and equipment, net	690,725	717,020
Goodwill	229,271	208,609
Other intangibles, net	87,245	84,922
Deferred tax asset	28,249	38,554
Other assets	57,170	48,659
Long-term assets of discontinued businesses	3,326	3,328
Total assets	1,643,767	1,586,344
Current liabilities
Current portion of long-term debt and capital leases	16,170	139,384
Accounts payable	29,675	31,218
Accrued compensation	57,414	46,951
Deferred revenue	55,357	56,422
Accrued liabilities	53,998	45,208
Other current liabilities	20,613	21,262
Current liabilities of discontinued businesses	1,944	1,802
Total current liabilities	235,171	342,247
Long-term debt and capital leases	624,310	527,136
Other long-term liabilities	101,724	104,966
Long-term liabilities of discontinued businesses	8,531	8,795
Total liabilities	969,736	983,144
Commitments and contingencies
Redeemable noncontrolling interest	14,577	0
Shareowners' equity
Preferred stock, $0.01 par value; 20,000,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $0.01 par value; 120,000,000 shares authorized; 80,763,440 issued and 49,106,698 shares outstanding at March 30, 2013 and 79,607,981 issued and 48,220,037 shares outstanding at December 29, 2012	817	796
Capital in excess of par value	2,170,901	2,097,316
Accumulated deficit	(284,572)	(368,301)
Treasury stock, at cost, 31,656,742 shares and 31,387,944 shares at March 30, 2013 and December 29, 2012, respectively	(1,228,681)	(1,135,609)
Accumulated other comprehensive income	(1,957)	6,603
Total shareowners' equity	656,508	600,805
Noncontrolling interests	2,946	2,395
Stockholder's Equity, Including Noncontrolling Interest and Redeemable Noncontrolling Interest	674,031	603,200
Total liabilities and equity	$ 1,643,767	$ 1,586,344