FAIR VALUES Part I (Details) (Fair Value, Measurements, Recurring [Member], USD $) In Millions, unless otherwise specified	Jul. 06, 2013	Dec. 31, 2012	Jun. 30, 2012
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Total assets	$ 9.9	$ 8.6	$ 8.2
Total liabilities	15.5	44.9	229.7
Level 1 [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Total assets	8.5	8.4	8.0
Total liabilities	8.8	8.6	8.2
Level 2 [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Total assets	1.4	0.2	0.2
Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Total liabilities	6.7	36.3	221.5
Prepaid Expenses and Other Current Assets [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Rabbi Trust assets	8.5	8.4	8.0
British Pound - U.S. Dollar forward contracts	0.8	0	0.1
Canadian Dollar - U.S. Dollar forward contracts	0.6	0.2	0.1
Prepaid Expenses and Other Current Assets [Member] | Level 1 [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Rabbi Trust assets	8.5	8.4	8.0
Prepaid Expenses and Other Current Assets [Member] | Level 2 [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
British Pound - U.S. Dollar forward contracts	0.8	0	0.1
Canadian Dollar - U.S. Dollar forward contracts	0.6	0.2	0.1
Other Long-term Assets [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Interest rate cap	0	0	0
Other Long-term Assets [Member] | Level 2 [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Interest rate cap	0	0	0
Accrued Employee Compensation and Benefits [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Rabbi Trust liabilities	8.5	8.4	8.0
Accrued Employee Compensation and Benefits [Member] | Level 1 [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Rabbi Trust liabilities	8.5	8.4	8.0
Current Portion of Acquisition Consideration Payable [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Acquisition consideration	2.3	30.3	216.7
Current Portion of Acquisition Consideration Payable [Member] | Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Acquisition consideration	2.3	30.3	216.7
Accrued Expenses and Other Current Liabilities [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Deferred director fees	0.3	0.2	0.2
Accrued Expenses and Other Current Liabilities [Member] | Level 1 [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Deferred director fees	0.3	0.2	0.2
Acquisition Consideration Payable, Net of Current Portion [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Acquisition consideration	4.4	6.0	4.8
Acquisition Consideration Payable, Net of Current Portion [Member] | Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Acquisition consideration	$ 4.4	$ 6.0	$ 4.8