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Accounting Pronouncements Recently Adopted (Tables)

6 Months Ended

Jul. 31, 2018

Accounting Policies [Abstract]

Schedule of Changes to Beginning of Period in the Consolidated Statement of Cash Flows

The changes to the beginning of period balances presented in the consolidated statement of cash flows are as follows (in thousands): 

		January 31, 2018						January 31, 2017
						As previously						As previously
			As adjusted			reported			As adjusted			reported
Cash and cash equivalents		$	214,811		$	214,811		$	256,279		$	256,279
Restricted funds included in other non-current    assets			600			—			600			—
Beginning of period balance presented in the    statement of cash flows		$	215,411		$	214,811		$	256,879		$	256,279

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- Definition

Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items.

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