Pension and Retirement Savings Plan - Reconciliation of Change in Benefit Obligation, Change in Plan Assets and Net Amount Recognized in Consolidated Balance Sheets (Details) $ in Thousands	12 Months Ended
Jan. 31, 2019 USD ($)
Change in benefit obligation:
Pension benefit obligation at 12/31/2018	$ 34,088
Service cost	93
Interest cost	25
Benefit and expense payments	(81)
Employee contributions	70
Foreign currency exchange rate impact	(441)
Pension benefit obligation at end of year	33,754
Change in plan assets:
Fair value of plan assets at 12/31/2018	33,538
Company contributions	105
Benefit and expense payments	(81)
Actual return on plan assets	25
Employee contributions	70
Foreign currency exchange rate impact	(434)
Fair value of plan assets at end of year	33,223
Funded status - consolidated	(531)
Amounts recognized in the consolidated balance sheets consist of:
Other long-term liabilities	531
Amounts recognized in accumulated other comprehensive (loss):
Prior service cost	537
Tax effect	(117)
Net amount recognized, after tax	420
Accumulated benefit obligation	$ 30,083

Defined benefit plan accumulated other comprehensive income net prior service cost credit tax effect.

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Pension and other postretirement defined benefit plans other liabilities noncurrent.

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Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level.

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Amount, after tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses.

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Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.

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Amount of contributions received by defined benefit plan from participant which increase benefit obligation.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of contribution received by defined benefit plan from employer which increases plan assets.

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Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

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Amount of foreign currency translation gain (loss) which (increases) decreases benefit obligation of defined benefit plan.

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Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status.

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Amount of cost recognized for passage of time related to defined benefit plan.

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Amount of payment to participant under defined benefit plan which decreases plan assets. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.

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Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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