CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $)	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]	Total
Balance at Jan. 31, 2012	$ 299,000	$ (215,105,000)	$ 142,994,000	$ 324,323,000	$ 29,332,000	$ 281,843,000
Balance (in Shares) at Jan. 31, 2012	29,853,000	21,523,000
Net income				(2,295,000)	707,000	(1,588,000)us-gaap_ProfitLoss
Treasury stock acquired		(5,445,000)				(5,445,000)
Treasury stock acquired (in Shares)		278,000				278,369us-gaap_TreasuryStockSharesAcquired
Noncontrolling interests distribution and other					(2,108,000)	(2,108,000)
Stock options and related tax effects		1,000,000	581,000			1,581,000
Stock options and related tax effects (in Shares)		(100,000)
Balance at Jan. 31, 2013	299,000	(219,550,000)	143,575,000	322,028,000	27,931,000	274,283,000
Balance (in Shares) at Jan. 31, 2013	29,853,000	21,701,000
Net income				35,073,000	5,156,000	40,229,000us-gaap_ProfitLoss
Treasury stock acquired		(3,486,000)				(3,486,000)
Treasury stock acquired (in Shares)		137,000				137,015us-gaap_TreasuryStockSharesAcquired
Noncontrolling interests distribution and other					(1,615,000)	(1,615,000)
Stock options and related tax effects		866,000	476,000			1,342,000
Stock options and related tax effects (in Shares)		(85,000)
Balance at Jan. 31, 2014	299,000	(222,170,000)	144,051,000	357,101,000	31,472,000	310,753,000
Balance (in Shares) at Jan. 31, 2014	29,853,000	21,753,000
Net income				87,337,000	16,377,000	103,714,000us-gaap_ProfitLoss
Treasury stock acquired		(18,238,000)				(18,238,000)
Treasury stock acquired (in Shares)		284,000				283,979us-gaap_TreasuryStockSharesAcquired
Noncontrolling interests distribution and other					(4,856,000)	(4,856,000)
Stock options and related tax effects		851,000	740,000			1,591,000
Stock options and related tax effects (in Shares)		(83,000)
Balance at Jan. 31, 2015	$ 299,000	$ (239,557,000)	$ 144,791,000	$ 444,438,000	$ 42,993,000	$ 392,964,000
Balance (in Shares) at Jan. 31, 2015	29,853,000	21,954,000

Number of shares issued related to stock options and related tax effects during the period.

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Value of stock options and related tax effects during the period.

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Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders.

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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Number of shares issued which are neither cancelled nor held in the treasury.

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Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

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Number of shares that have been repurchased during the period and are being held in treasury.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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