Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2011
Cash flows from operating activities:
Net income (loss)	$ 2,483	$ 8,944	$ (9,267)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	39,437	43,273	73,535
Stock-based compensation	1,613	1,395	3,585
Deferred income taxes	(12,223)	(16,123)	(25,343)
Non-cash interest expense	(2,405)	634	(810)
Loss on early extinguishment of debt	1,021		243
Fair market value adjustment on interest rate swap			(1,616)
Amortization of debt issuance costs	2,221	1,361	1,857
Amend and extend transaction fees	577	1,487
Goodwill adjustments			1,433
Other non-cash	217		(608)
Changes in operating assets and liabilities:
Accounts receivable	7,634	(844)	1,896
Prepaid expenses and other assets	(1,683)	(2,215)	(801)
Accounts payable	770	(825)	778
Income taxes payable	(1,761)	(943)	1,116
Accrued expenses and other liabilities	(2,531)	(3,010)	(432)
Deferred revenue	(2,222)	(889)	450
Net cash provided by operating activities	33,148	32,245	46,016
Cash flows from investing activities:
Purchases of property and equipment	(2,036)	(3,489)	(2,385)
Purchases of intangible assets	(4,345)	(313)	(403)
Net cash used in investing activities	(6,381)	(3,802)	(2,788)
Cash flows from financing activities:
Exercise of stock options under employee stock option plan	48	3	24
Repurchase of common stock for taxes due from option exercises	(157)	(2)	(61)
Repurchase of common stock for taxes due from restricted stock unit releases	(1,247)
Repurchase of common stock under stock repurchase plans			(346)
Proceeds from borrowings	84,400
Payments on debt	(118,142)	(42,500)	(40,930)
Debt issuance costs paid	(3,806)	(1,957)
Net cash used in financing activities	(38,904)	(44,456)	(41,313)
Effect of exchange rate changes on cash	(236)	(673)	(537)
Net (decrease) increase in cash and cash equivalents	(12,373)	(16,686)	1,378
Cash and cash equivalents at beginning of period	109,688	126,374	124,996
Cash and cash equivalents at end of period	97,315	109,688	126,374
Supplemental disclosures of cash flow information:
Income taxes paid, net of refunds	11,677	18,303	11,042
Interest expense paid	$ 29,079	$ 24,991	$ 25,154