Consolidated Statements of Cash Flows (Parenthetical) $ in Thousands	3 Months Ended
	Apr. 30, 2015 USD ($)
Impact of net cash provided by operating activities	$ 735,081	[1]
Impact of net cash provided by financing activities	(161,810)	[1]
New Accounting Pronouncement, Early Adoption, Effect [Member] | Accounting Standards Update 2016-09 [Member]
Impact of net cash provided by operating activities	4,224
Impact of net cash provided by financing activities	$ 4,224

[1] During the three months ended April 30, 2016, the Company early adopted Accounting Standards Update No. 2016-09, “Improvements to Employee Share-Based Payment Accounting (Topic 718)” (“ASU 2016-09”), which addresses among other items, updates to the presentation and treatment of excess tax benefits related to stock based compensation. The Company has adopted changes to the consolidated statements of cash flows on a retrospective basis. The impact for the three months ended April 30, 2015 to net cash provided by operating activities and net cash used in financing activities was $4,224.