Goodwill and Other Intangibles Goodwill and Other Intangibles (Tables)

6 Months Ended

Sep. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

The Company's changes in goodwill at September 30, 2021 and 2020 consisted of the following:

(in thousands of dollars)	Six Months Ended September 30,
	2021		2020
Balance at beginning of fiscal year	$	173,051	$	126,826
Foreign currency translation adjustment	(87)		84
Balance at end of period	$	172,964	$	126,910

Schedule of Finite-Lived Intangible Assets [Table Text Block]

The Company's intangible assets subject to amortization consisted of the following at September 30, 2021 and 2020 and at March 31, 2021:

(in thousands, except useful life)				September 30, 2021
	Useful Life (years)			Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Customer relationships(1)	11	—	13	$	62,500	$	(6,097)	$	56,403
Trade names(1)		5		11,100		(2,715)		8,385
Developed technology(1)		3		4,800		(2,800)		2,000
Noncompetition agreements(1)		5		1,000		(350)		650
Other		5		764		(692)		72
Total intangible assets				$	80,164	$	(12,654)	$	67,510

			September 30, 2020
	Useful Life (years)		Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Customer relationships		13	$	9,500	$	(548)	$	8,952
Trade names		5	3,300		$	(495)	2,805
Developed technology		3	4,800		$	(1,200)	3,600
Noncompetition agreements		5	1,000		$	(150)	850
Other		5	762		$	(660)	102
Total intangible assets			$	19,362	$	(3,053)	$	16,309

				March 31, 2021
	Useful Life (years)			Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Customer relationships(1)	11	—	13	$	62,500	$	(3,323)	$	59,177
Trade names(1)		5		11,100		(1,605)		9,495
Developed technology(1)		3		4,800		(2,000)		2,800
Noncompetition agreements(1)		5		1,000		(250)		750
Other		5		760		(678)		82
Total intangible assets				$	80,160	$	(7,856)	$	72,304

(1)On October 1, 2020 the Company acquired 100% of the capital stock of Silva for approximately $164.0 million in cash and $5.9 million of working capital on-hand at the date of acquisition. The Silva acquisition resulted in $60.8 million of intangibles. See Note 3 for additional information.

Intangible assets are amortized on a straight-line basis over the asset's estimated useful economic life as noted above.

Finite-lived Intangible Assets Amortization Expense [Table Text Block]

The Company's amortization expense for intangible assets for the three and six months ended September 30, 2021 and 2020 was:

(in thousands of dollars)	Three Months Ended September 30,				Six Months Ended September 30,
	2021		2020		2021		2020
Amortization Expense	$	2,853	$	809	$	5,256	$	1,617

Amortization expense for the developed technology intangible asset is recorded in cost of goods sold in the consolidated income statements of income. The amortization expense for other intangible assets is recorded in selling, general, and administrative expenses in the consolidated statements of income.

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

As of September 30, 2021, the expected future amortization expense for intangible assets is as follows:

Fiscal Year (in thousands of dollars)
2022 (excluding the six months ended September 30, 2021)	$	4,822
2023	9,204
2024	7,969
2025	8,534
2026 and thereafter	36,981
Total expected future amortization expense	$	67,510