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Debt - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended					3 Months Ended	6 Months Ended	1 Months Ended			6 Months Ended						1 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Mar. 13, 2013	Mar. 13, 2013 Letter of Credit	Jun. 30, 2013 Non-US lines of credit	Mar. 13, 2013 Interest Rate Swap	Jun. 30, 2013 Interest Rate Swap	Mar. 13, 2013 Term Loan	Feb. 22, 2012 Term Loan	Feb. 22, 2012 ABL Facility	Jun. 30, 2013 ABL Facility Minimum	Jun. 30, 2013 ABL Facility Maximum	Jun. 30, 2013 ABL Facility Base Rate Borrowings Minimum	Jun. 30, 2013 ABL Facility Base Rate Borrowings Maximum	Jun. 30, 2013 ABL Facility Libor Borrowings Minimum	Jun. 30, 2013 ABL Facility Libor Borrowings Maximum	Mar. 13, 2013 Revolving Credit Facility	Jun. 30, 2013 Revolving Credit Facility	Jun. 30, 2013 Senior Secured Credit Facility	Jun. 30, 2013 Senior Secured Credit Facility Year 1 of the senior secured credit facility amortization schedule	Jun. 30, 2013 Senior Secured Credit Facility Year 2 of the senior secured credit facility amortization schedule	Jun. 30, 2013 Senior Secured Credit Facility Year 3 of the senior secured credit facility amortization schedule	Jun. 30, 2013 Senior Secured Credit Facility Year 4 of the senior secured credit facility amortization schedule	Jun. 30, 2013 Senior Secured Credit Facility Year 5 of the senior secured credit facility amortization schedule
Debt Instrument [Line Items]
Secured credit facility					$ 225.0	$ 50.0	$ 14.3			$ 75.0		$ 100.0							$ 150.0
Line of credit facility, amount outstanding	69.0		69.0								215.0
Line of credit facility, term										5 years									5 years
Breakage fees and premiums			4.2
Term loan principal payment commencement date																					Jun. 30, 2013
Line of credit facility, percentage of original term loan amount to be repaid																						7.50%	10.00%	10.00%	12.50%	12.50%
Line of credit facility maturity date																					Mar. 13, 2018
Base rate borrowings margin ranges															1.00%	2.00%	2.00%	3.00%
Commitment fee													0.25%	0.45%
Maximum covenant leverage ratio	3.25		3.25
Debt agreement termination costs			8.7
Debt early termination penalty payment			4.2
Penalty percentage of outstanding balance of term loan			2.75%
Write-off financing cost			4.5
Debt issuance cost			1.9
Remaining borrowing capacity	28.9		28.9																	52.1
Notional amount of cash flow hedge								75.0
Cash flow hedge swap termination date								2018-03-13
Fair value of swap derivative liabilities	0.5		0.5
Unrealized gain recorded in other comprehensive income	$ 1.1	$ 0.3	$ 0.5	$ 0.7					$ 1.2

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Breakage fees and premium.

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Debt agreement termination costs.

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Interest Rate Derivatives Expiration Date

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Line Of Credit Facility Covenant Terms Leverage Ratio Maximum

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Line Of Credit Facility Early Repayment Penalty

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Line of Credit Facility Percentage of Principal Repayment

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Percentage Of Debt Instrument Principal Outstanding

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Principal Payment Commencement Date

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Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Amount of debt issuance costs (for example, but not limited to, legal, accounting, broker, and regulatory fees).

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Amount of write-off of deferred financing costs and debt discounts related to prepetition debt obligations.

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- Definition

Fair value before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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Amount borrowed under the credit facility as of the balance sheet date.

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Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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Amount after tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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