FAIR VALUES Part I (Details) (Measured on a recurring basis [Member], USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total assets	$ 10.2	$ 8.6
Total liabilities	353.6	44.9
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total assets	9.1	8.4
Total liabilities	9.4	8.6
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total assets	1.1	0.2
Total liabilities	337.6
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total liabilities	6.6	36.3
Prepaid Expenses and Other Current Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Rabbi Trust assets	9.1	8.4
Prepaid Expenses and Other Current Assets [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Rabbi Trust assets	9.1	8.4
Accrued Employee Compensation and Benefits [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Rabbi Trust liabilities	9.1	8.4
Accrued Employee Compensation and Benefits [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Rabbi Trust liabilities	9.1	8.4
Current Portion of Acquisition Consideration Payable [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Acquisition consideration	2.6	30.3
Current Portion of Acquisition Consideration Payable [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Acquisition consideration	2.6	30.3
Accrued Expenses and Other Current Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Deferred director fees	0.3	0.2
Accrued Expenses and Other Current Liabilities [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Deferred director fees	0.3	0.2
Acquisition Consideration Payable, Net of Current Portion [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Acquisition consideration	4.0	6.0
Acquisition Consideration Payable, Net of Current Portion [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Acquisition consideration	4.0	6.0
Interest Rate Swaps [Member] | Other Long-Term Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Asset	1.1
Interest Rate Swaps [Member] | Other Long-Term Assets [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Asset	1.1
Interest Rate Swaps [Member] | Other Long-Term Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Liability	1.6
Interest Rate Swaps [Member] | Other Long-Term Liabilities [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Liability	1.6
Interest Rate Cap [Member] | Other Long-Term Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Asset	0	0
Interest Rate Cap [Member] | Other Long-Term Assets [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Asset	0	0
Hedged Portion of 6.875% Senior Notes Due 2019 [Member] | Long-term Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Hedged portion of 6.875% Senior Notes due 2019	336.0
Hedged Portion of 6.875% Senior Notes Due 2019 [Member] | Long-term Debt [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Hedged portion of 6.875% Senior Notes due 2019	336.0
Canadian Dollar - U.S. Dollar Forward Contracts [Member] | Prepaid Expenses and Other Current Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Asset	0	0.2
Canadian Dollar - U.S. Dollar Forward Contracts [Member] | Prepaid Expenses and Other Current Assets [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Asset	$ 0	$ 0.2