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Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

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- Definition

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
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Commitments and Contingencies - Additional Information (Details) - USD ($)	Oct. 31, 2018	Mar. 31, 2018	Jan. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Base rent obligation	$ 149,900,000		$ 113,000,000
Lessee, Lease, Description [Line Items]
Outstanding letters of credit	$ 10,800,000		$ 9,600,000
Letter of Credit
Lessee, Lease, Description [Line Items]
Principal amount		$ 1,500,000.0