Condensed Consolidated Statements of Operations and Retained Earnings - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Revenues [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 235,492	$ 220,287
Cost of Goods and Services Sold	148,843	137,768
Gross Profit	86,649	82,519
Operating Expenses [Abstract]
Selling expenses	24,981	26,156
General and administrative expenses	27,443	21,881
Research and Development Expense	5,900	5,130
Amortization of intangibles	6,877	6,535
Operating Expenses	65,201	59,702
Income from operations	21,448	22,817
Other Income & Expenses [Abstract]
Interest Expense	8,625	6,203
Investment (income) loss	(543)	430
Foreign currency exchange (gain) loss	483	1,203
Other (income) expense, net	214	(2,303)
Income Tax Expense Benefit [Abstract]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	12,669	17,284
Income tax expense (benefit)	3,394	8,893
Net income (loss)	9,275	8,391
Retained Earnings Accumulated Deficit [Abstract]
Retained earnings - beginning of period	356,758	316,343
Retained earnings - end of period	$ 366,033	$ 324,734
Weighted Average Number Of Shares Outstanding Basic [Abstract]
Average basic shares outstanding	28,662	28,544
Weighted Average Number Of Shares Outstanding [Abstract]
Average diluted shares outstanding	28,906	28,699
Earnings Per Share Basic [Abstract]
Basic income (loss) per share:	$ 0.32	$ 0.29
Earnings Per Share Diluted [Abstract]
Diluted income (loss) per share:	$ 0.32	$ 0.29
Retained Earnings
Income Tax Expense Benefit [Abstract]
Net income (loss)	$ 9,275	$ 8,391
Retained Earnings Accumulated Deficit [Abstract]
Retained earnings - end of period	$ 366,033