Pension Plans (Tables)

12 Months Ended

Mar. 31, 2021

Defined Benefit Plan Net Periodic Benefit Cost [Abstract]

Reconciliation of Benefit Obligations

The following provides a reconciliation of the benefit obligations, the plan assets and the funded status.

	Year ended
	March 31, 2021			March 31, 2020
Pension benefit obligation, beginning of year	$	18,789		$	17,784
Service cost		2,447			1,828
Contributions paid by plan participants		2,704			2,180
Interest cost		126			131
Benefits paid		(2,207	)		(2,841	)
Prior service cost		—			836
Actuarial loss / (gain)		473			(1,740	)
Foreign currency translation		316			611
Pension benefit obligation, end of year	$	22,648		$	18,789

Reconciliation of Plan Assets

	Year ended
	March 31, 2021			March 31, 2020
Fair value of plan assets, beginning of year	$	12,436		$	10,416
Actual return on plan assets		1,293			1,008
Contributions paid by employer		1,333			1,280
Contributions paid by plan participants		2,704			2,180
Benefits paid		(2,207	)		(2,841	)
Foreign currency translation		192			393
Fair value of plan assets, end of year	$	15,751		$	12,436

Reconciliation of Funded Status

	Year ended
	March 31, 2021		March 31, 2020
Pension benefit obligation, end of year	$	22,648	$	18,789
Fair value of plan assets, end of year		15,751		12,436
Net funding obligation, end of year	$	6,897	$	6,353

Assumptions Used to Determine Pension Benefit Obligation

The assumptions used to determine the pension benefit obligation at the end of each financial year are:

	Year ended
	March 31, 2021			March 31, 2020			March 31, 2019
Price inflation		1.00	%		1.00	%		1.00	%
Discount rate		0.35	%		0.60	%		0.70	%
Interest rate on retirement savings capital		0.60	%		0.60	%		1.20	%
Expected return on plan assets		1.75	%		1.75	%		1.20	%
Average rate of salary increase		1.00	%		1.00	%		1.00	%

Schedule of Net Pension Costs

The net pension costs for the year are based on the assumptions adopted at the start of each financial year and comprise:

	Year ended
	March 31, 2021			March 31, 2020			March 31, 2019
Employer service cost	$	2,447		$	1,828		$	1,574
Interest cost		126			131			153
Expected return on plan assets		(243	)		(130	)		(131	)
Amortization of prior service credit		58			(23	)		(14	)
Amortization of net loss		—			216			154
Net pension cost	$	2,388		$	2,022		$	1,736

Schedule of Provision for Pension Benefit Obligation Recognized in Other Comprehensive Income

The provision for pension benefit obligation recognized in other comprehensive income comprises:

	Year ended
	March 31, 2021			March 31, 2020			March 31, 2019
Net actuarial (gain) / loss	$	(564	)	$	(1,841	)	$	1,027
Amortization of prior service credit		(58	)		23			14
Amortization of net loss		—			(216	)		(154	)
	$	(622	)	$	(2,034	)	$	887

Schedule of Benefit Payments Expected to be Paid

The following benefit payments are expected to be paid in the following periods:

2022	$	1,122
2023	$	1,161
2024	$	1,178
2025	$	1,199
2026	$	1,215
2027 to 2030	$	6,397