FAIR VALUES Part I (Details) (Fair Value, Measurements, Recurring [Member], USD $) In Millions, unless otherwise specified	Sep. 29, 2012	Dec. 31, 2011	Oct. 01, 2011
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Total assets	$ 8.3	$ 13.3	$ 14.3
Total liabilities	243.7	481.1	483.6
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Total assets	8.2	7.5	7.7
Total liabilities	8.4	7.7	7.9
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Total assets	0.1	5.8	6.6
Total liabilities	0.1	263.0	264.3
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Total assets	0	0	0
Total liabilities	235.2	210.4	211.4
Prepaid Expenses and Other Current Assets [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Rabbi Trust assets	8.2	7.5	7.7
Prepaid Expenses and Other Current Assets [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Rabbi Trust assets	8.2	7.5	7.7
Prepaid Expenses and Other Current Assets [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Rabbi Trust assets	0	0	0
Prepaid Expenses and Other Current Assets [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Rabbi Trust assets	0	0	0
Accrued Employee Compensation and Benefits [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Rabbi Trust liabilities	8.2	7.5	7.7
Accrued Employee Compensation and Benefits [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Rabbi Trust liabilities	8.2	7.5	7.7
Accrued Employee Compensation and Benefits [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Rabbi Trust liabilities	0	0	0
Accrued Employee Compensation and Benefits [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Rabbi Trust liabilities	0	0	0
Current Portion of Acquisition Consideration Payable [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Acquisition consideration	230.2	192.7	20.8
Current Portion of Acquisition Consideration Payable [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Acquisition consideration	0	0	0
Current Portion of Acquisition Consideration Payable [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Acquisition consideration	0	0	0
Current Portion of Acquisition Consideration Payable [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Acquisition consideration	230.2	192.7	20.8
Accrued Expenses and Other Current Liabilities [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Deferred director fees	0.2	0.2	0.2
Accrued Expenses and Other Current Liabilities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Deferred director fees	0.2	0.2	0.2
Accrued Expenses and Other Current Liabilities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Deferred director fees	0	0	0
Accrued Expenses and Other Current Liabilities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Deferred director fees	0	0	0
Long-term Debt [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
5.125% Senior Notes due 2014		263.0	264.3
Long-term Debt [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
5.125% Senior Notes due 2014		0	0
Long-term Debt [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
5.125% Senior Notes due 2014		263.0	264.3
Long-term Debt [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
5.125% Senior Notes due 2014		0	0
Acquisition Consideration Payable, Net of Current Portion [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Acquisition consideration	5.0	17.7	190.6
Acquisition Consideration Payable, Net of Current Portion [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Acquisition consideration	0	0	0
Acquisition Consideration Payable, Net of Current Portion [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Acquisition consideration	0	0	0
Acquisition Consideration Payable, Net of Current Portion [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Acquisition consideration	5.0	17.7	190.6
British Pound - U.S. Dollar Forward Exchange Contracts [Member] | Prepaid Expenses and Other Current Assets [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative Asset	0.1
British Pound - U.S. Dollar Forward Exchange Contracts [Member] | Prepaid Expenses and Other Current Assets [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative Asset	0
British Pound - U.S. Dollar Forward Exchange Contracts [Member] | Prepaid Expenses and Other Current Assets [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative Asset	0.1
British Pound - U.S. Dollar Forward Exchange Contracts [Member] | Prepaid Expenses and Other Current Assets [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative Asset	0
Interest Rate Swaps [Member] | Other Long-term Assets [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative Asset		5.5	6.3
Interest Rate Swaps [Member] | Other Long-term Assets [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative Asset		0	0
Interest Rate Swaps [Member] | Other Long-term Assets [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative Asset		5.5	6.3
Interest Rate Swaps [Member] | Other Long-term Assets [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative Asset		0	0
Interest Rate Cap [Member] | Other Long-term Assets [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative Asset	0	0.2	0.2
Interest Rate Cap [Member] | Other Long-term Assets [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative Asset	0	0	0
Interest Rate Cap [Member] | Other Long-term Assets [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative Asset	0	0.2	0.2
Interest Rate Cap [Member] | Other Long-term Assets [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative Asset	0	0	0
Canadian Dollar - U.S. Dollar Forward Contracts [Member] | Prepaid Expenses and Other Current Assets [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative Asset		0.1	0.1
Canadian Dollar - U.S. Dollar Forward Contracts [Member] | Prepaid Expenses and Other Current Assets [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative Asset		0	0
Canadian Dollar - U.S. Dollar Forward Contracts [Member] | Prepaid Expenses and Other Current Assets [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative Asset		0.1	0.1
Canadian Dollar - U.S. Dollar Forward Contracts [Member] | Prepaid Expenses and Other Current Assets [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative Asset		0	0
Canadian Dollar - U.S. Dollar Forward Contracts [Member] | Accrued Expenses and Other Current Liabilities [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative Liability	0.1
Canadian Dollar - U.S. Dollar Forward Contracts [Member] | Accrued Expenses and Other Current Liabilities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative Liability	0
Canadian Dollar - U.S. Dollar Forward Contracts [Member] | Accrued Expenses and Other Current Liabilities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative Liability	0.1
Canadian Dollar - U.S. Dollar Forward Contracts [Member] | Accrued Expenses and Other Current Liabilities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative Liability	$ 0