Supplemental Cash Flow Information (Tables)

12 Months Ended

Jan. 31, 2014

Supplemental Cash Flow Elements [Abstract]

Schedule of supplemental cash flow information

	For the years ended January 31,
	2014			2013			2012
Changes in operating assets and liabilities:
Accounts receivable	$	1,297		$	4,362		$	(15,569	)
Inventories	(9,190		)	8,567			(11,528		)
Prepaid expenses and other assets	(239		)	976			(291		)
Accounts payable	(994		)	(2,937		)	(233		)
Accrued and other liabilities	(1,150		)	(1,709		)	4,578
Customer advances	(173		)	(60		)	(33		)
	$	(10,449	)	$	9,199		$	(23,076	)
Cash paid during the year for income taxes	$	20,002		$	26,697		$	16,782
Significant non-cash transactions:
Capital expenditures included in accounts payable	$	1,083		$	2,196		$	984