Summary of Significant Accounting Policies - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 31, 2015	Nov. 01, 2014	Oct. 31, 2015	Nov. 01, 2014	Jan. 31, 2015
Components of Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance January 31, 2015			$ (40,576)
Other comprehensive income (loss) before reclassifications:
Foreign currency translation adjustment			2,360
Loss on intra-entity foreign currency transactions (long-term investment nature)			(743)
Net actuarial loss			(762)
Amounts reclassified from AOCI:
Amortization of net actuarial loss			3,894
Income tax expense			1,228
Total other comprehensive income (loss)	$ (898)	$ (6,320)	3,521	$ (2,053)	$ (23,809)
Balance October 31, 2015	(37,055)	$ (18,820)	(37,055)	$ (18,820)	(40,576)
Foreign Currency Translation
Components of Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance January 31, 2015			(16,247)
Other comprehensive income (loss) before reclassifications:
Foreign currency translation adjustment			2,360
Loss on intra-entity foreign currency transactions (long-term investment nature)			(743)
Net actuarial loss			0
Amounts reclassified from AOCI:
Amortization of net actuarial loss			0
Income tax expense			0
Total other comprehensive income (loss)			1,617
Balance October 31, 2015	(14,630)		(14,630)		(16,247)
Unrecognized Pension/Postretirement Benefit Costs
Components of Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance January 31, 2015			(24,329)
Other comprehensive income (loss) before reclassifications:
Foreign currency translation adjustment			0
Loss on intra-entity foreign currency transactions (long-term investment nature)			0
Net actuarial loss			(762)
Amounts reclassified from AOCI:
Amortization of net actuarial loss			3,894
Income tax expense			1,228
Total other comprehensive income (loss)			1,904
Balance October 31, 2015	$ (22,425)		$ (22,425)		$ (24,329)