Income Taxes (Schedule Of Significant Components Of Net Deferred Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	Jan. 01, 2012	Jan. 02, 2011
Deferred Tax Assets And Liabilities [Line Items]
Depreciation, amortization and asset basis differences	$ 4,705	$ 8,314
Insurance reserves	8,788	8,339
Covenants not-to-compete	2,289	3,456
Stock compensation	10,282	12,764
Other accruals and reserves	13,905	14,137
Bad debt reserves	2,969	3,023
Derivatives liability	295	1,252
Other	3,131	2,597
Total deferred Federal income tax assets	51,222	59,890
Capitalized software	9,657	7,143
Gain on debt extinguishments	22,682	22,682
Foreign tax credit	219	1,096
Other	2,248	3,571
Total deferred Federal income tax liabilities	34,806	34,492
Net deferred income tax asset	16,416	25,398
Federal [Member]
Deferred Tax Assets And Liabilities [Line Items]
Total deferred Federal income tax assets	46,364	53,882
State And Local Jurisdiction [Member]
Deferred Tax Assets And Liabilities [Line Items]
Net deferred income tax asset	4,858	6,008
Domestic Country [Member]
Deferred Tax Assets And Liabilities [Line Items]
Net deferred income tax asset	$ 11,558	$ 19,390