Financing Arrangements (Asset Based Revolving Credit Facility) - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Asset-based credit facility, maximum borrowing capacity	$ 230,000,000
Amount outstanding under letters of credit	1,303,000
Asset-based credit facility	140,587,000	25,660,000
Cash and cash equivalents	23,557,000	36,793,000	28,072,000	52,003,000
Debt instrument maximum additional borrowing capacity amount	52,538,000
Average outstanding borrowing	101,271,000
Average available liquidity	72,318,000
Asset-based credit facility, maturity date	Jun. 30, 2016
Borrowing base availability	25,000,000
Asset-based credit facility, interest rate	5.15%
Asset-based credit facility, origination fees	4,306,000
Unamortized origination fees	2,070,000	2,295,000
Asset-based credit facility, origination fees included in other current assets	920,000	918,000
Asset-based credit facility, origination fees included in other long-term assets	1,150,000	1,377,000
Minimum
Debt Instrument [Line Items]
Asset-based credit facility, monthly fees	0.375%
Maximum
Debt Instrument [Line Items]
Asset-based credit facility, monthly fees	0.50%
Scenario 1
Debt Instrument [Line Items]
Applicable margin rate reduction	All applicable margins may be permanently reduced by 0.25% if EBITDA meets or exceeds $25,000,000 over any trailing twelve month period
Line of credit facility conditional reduction in margin rate	0.25%
Scenario 1 | Minimum
Debt Instrument [Line Items]
Amount of EBIDTA to reduce applicable margin	25,000,000
Scenario 2
Debt Instrument [Line Items]
Applicable margin rate reduction	reduced by an additional 0.25% if EBITDA meets or exceeds $50,000,000 over any trailing twelve month period
Line of credit facility conditional reduction in margin rate	0.25%
Scenario 2 | Minimum
Debt Instrument [Line Items]
Amount of EBIDTA to reduce applicable margin	50,000,000
United States
Debt Instrument [Line Items]
Asset-based credit facility, maximum borrowing capacity	158,333,000
Canada
Debt Instrument [Line Items]
Asset-based credit facility, maximum borrowing capacity	31,667,000
United Kingdom
Debt Instrument [Line Items]
Asset-based credit facility, maximum borrowing capacity	$ 40,000,000