Line of credit facility additional borrowing capacity.

No definition available.

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- Definition

Number of European banks guaranteed obligations to third parties.

+ References

No definition available.

+ Details

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- Definition

Number of foreign subsidiaries under guarantee obligations.

+ References

No definition available.

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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.

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- Definition

The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=115931803&loc=d3e12069-110248

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- Definition

Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4297-108586

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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- Definition

Average amount borrowed under the credit facility during the period.

+ References

No definition available.

+ Details

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- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the normal operating cycle if longer.

+ References

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- Definition

Weighted average interest rate of long-term debt outstanding calculated over time.

+ References

No definition available.

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- Definition

Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Debt and Lines of Credit - Additional Information (Details)		3 Months Ended		6 Months Ended
	Oct. 12, 2018 USD ($)	Jul. 31, 2019 USD ($) Bank Subsidiary	Jul. 31, 2018 USD ($) Bank Subsidiary	Jul. 31, 2019 USD ($) Bank Subsidiary	Jul. 31, 2018 USD ($) Bank Subsidiary	Jul. 31, 2019 CHF (SFr) Bank Subsidiary	Jul. 31, 2018 CHF (SFr) Bank Subsidiary
Debt Instrument [Line Items]
Cash paid for interest				$ 300,000	$ 300,000
Unsecured Debt \| Swiss subsidiary
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		$ 6,500,000	$ 6,600,000	6,500,000	6,600,000	SFr 6,500,000	SFr 6,500,000
Outstanding borrowing amount		0	0	0	0
Revolving Credit Facility \| Secured Debt \| Credit Agreement Due on October 12, 2023
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 100,000,000.0
Uncommitted increase to borrowing capacity	$ 50,000,000.0
Credit facility matures date	Oct. 12, 2023
Loan drawn under the facility		50,300,000	0	50,300,000	0	SFr 50,000,000.0
Line of credit facility remaining borrowing capacity		49,400,000	99,700,000	49,400,000	99,700,000
Weighted average borrowings amount		$ 50,200,000	0	$ 50,000,000.0	$ 3,700,000
Weighted average interest rate		1.00%		1.00%	3.07%
Letter of Credit
Debt Instrument [Line Items]
Credit facility matures date				Jun. 01, 2020
Outstanding borrowing amount		$ 300,000	$ 300,000	$ 300,000	$ 300,000
Letter of Credit \| Secured Debt \| Credit Agreement Due on October 12, 2023
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 15,000,000.0
Letter of Credit \| Unsecured Debt \| Swiss subsidiary
Debt Instrument [Line Items]
Number of European banks guaranteed obligations to third parties \| Bank		2	2	2	2	2	2
Number of foreign subsidiaries under guaranteed obligation \| Subsidiary		2	2	2	2	2	2
Guaranteed obligations to third parties		$ 1,200,000	$ 1,200,000	$ 1,200,000	$ 1,200,000
Restricted deposit relates to lease agreement		$ 500,000	$ 600,000	$ 500,000	$ 600,000
Swingline \| Secured Debt \| Credit Agreement Due on October 12, 2023
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	25,000,000.0
Swiss Borrowers \| Secured Debt \| Credit Agreement Due on October 12, 2023
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 75,000,000.0