Basis of Presentation - Additional Information (Detail) (USD $)	3 Months Ended	6 Months Ended				6 Months Ended		6 Months Ended		6 Months Ended	1 Months Ended		1 Months Ended
	Aug. 24, 2012	Aug. 24, 2012	Aug. 24, 2012 Operating Lease Sublease To Schurman	Feb. 29, 2012 Operating Lease Sublease To Schurman	Aug. 26, 2011 Operating Lease Sublease To Schurman	Aug. 24, 2012 Schurman	Aug. 24, 2012 Schurman Collectibility of Receivables	Aug. 24, 2012 Schurman Subordinated Credit Facility	Aug. 24, 2012 Schurman Investment In Equity	Aug. 24, 2012 Schurman Liquidity Guaranty	Jul. 27, 2012 Part City Holdings, Inc	Jun. 04, 2012 Part City Holdings, Inc	Jul. 27, 2012 PC Topco Holdings, Inc
Variable Interest Entity [Line Items]
Equity Interest of Variable Interest Entity						15.00%
Maximum exposure to loss, Amount			$ 17,700,000	$ 22,100,000	$ 28,500,000		$ 20,500,000	$ 10,000,000	$ 1,900,000	$ 12,000,000
Number of days under liquidity guaranty										91 days
End period of Liquidity Guaranty										2014-01
Initial term of Subordinated Credit Facility								19 months
End Period of Subordinated Credit Facility								Nov. 17, 2010
Renewal Period of Subordinated Credit Facility								1 year
Majority stake disposal value												2,690,000,000
Number of common shares exchanged											617.3
Number of common shares exchanged													1,200
Number of common shares sold											123.44
Value of common shares sold											4,900,000
Gain on common shares sold	3,152,000	3,152,000									(3,152,000)
Additional Proceeds on working capital adjustment											1,000,000
Total investments in common stock	10,700,000	10,700,000
Additional Proceeds on working capital adjustment											$ 1,000,000