Long-Term Debt - Schedule of Long-Term Debt (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014 Guarantors	Dec. 31, 2013
7.75% Senior Secured Notes due 2019 [Member]
Debt Instrument [Line Items]
Percentage of Senior Secured Notes	7.75%	7.75%
Maturity date	Aug. 01, 2019
Offering date	Aug. 07, 2013
Aggregate principal amount of notes sold	$ 425
Net proceeds received from private placement of notes	351
Number of unsecured guarantors	2
Earliest redemption date	Aug. 01, 2016
Change in control purchase price	101.00%
Secured Promissory Note [Member]
Debt Instrument [Line Items]
Maturity date	Feb. 01, 2016
Proceeds of the Secured Promissory Note	35
Purchase price of business acquisition	50
Secured Promissory Notes, interest rate description	Principal and interest are payable monthly based on a five-year amortization at a defined LIBOR rate plus 300 basis points
Secured Promissory Note, interest rate	3.23%
Final balloon payment	15.3
Other, with a current weighted-average interest rate of 4.05%, most of which is secured by machinery and equipment [Member]
Debt Instrument [Line Items]
Weighted-average interest rate of other debt	4.05%
Secured Term Loan [Member]
Debt Instrument [Line Items]
Repayment of outstanding borrowings	67.2
2016 [Member]
Debt Instrument [Line Items]
Redemption price	103.875%
2017 [Member]
Debt Instrument [Line Items]
Redemption price	101.938%
2018 and Thereafter [Member]
Debt Instrument [Line Items]
Redemption price	100.00%
Minimum [Member]
Debt Instrument [Line Items]
Notice period of senior secured notes to be redeemed	Not less than 30 days
Maximum [Member]
Debt Instrument [Line Items]
Notice period of senior secured notes to be redeemed	Nor more than 60 days
First Priority Secured Notes [Member]
Debt Instrument [Line Items]
Carrying value of the assets	463
Second Priority Secured Notes [Member]
Debt Instrument [Line Items]
Carrying value of the assets	133
Amended Working Capital Revolver Loan [Member]
Debt Instrument [Line Items]
Amended maximum amount of revolving credit facility	100.0
Maturity date	Apr. 13, 2018
Description of interest rate of revolving credit facility	Interest at a base rate (generally equivalent to the prime rate) plus 0.50% if borrowing availability is greater than $25.0 million, otherwise plus 0.75% or, at our option, accrues interest at LIBOR plus 1.50% if borrowing availability is greater than $25.0 million, otherwise LIBOR plus 1.75%.
Line of credit facility, interest rate	3.75%
Letters of credit maximum capacity	15.0
Amount available for borrowing	69.4
Fees expressed as percentage for unused letters of credit	1.00%
Fees expressed as percentage for unused revolving credit facility	0.25%
Amended working capital revolver loan requirements	A minimum fixed charge coverage ratio of not less than 1.10 to 1, if at any time the excess availability (as defined by the Amended Working Capital Revolver Loan), under the Amended Working Capital Revolver Loan, is less than or equal to $12.5 million.
Amended Working Capital Revolver Loan [Member] | Covenants [Member]
Debt Instrument [Line Items]
Loan requirements description	Equal to or greater than the greater of (x) 20% of the maximum revolver commitment or (y) $20 million
Limit of distributions/dividends	0.5
Limit of treasury stock acquisition	0.5
Limit of joint ventures	35.0
Limit of other investments	$ 50.0
Events of default description	Any material misstatement or misrepresentation and breaches of representations and warranties made, violations of covenants, cross-payment default to indebtedness in excess of $2.5 million, cross-acceleration to indebtedness in excess of $2.5 million, bankruptcy and insolvency events, certain unsatisfied judgments, certain liens, and certain assertions of, or actual invalidity of, certain loan documents.