Segment Reporting - Revenue and EBITDA from Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting
Total net sales	$ 480,601	$ 444,547
Depreciation and amortization	11,394	10,287
Total cost of sales	309,382	289,058
Gross profit	171,219	155,489
Operating expenses	108,427	93,899
Income from operations	62,792	61,590
EBITDA by segment:
Income (loss) from operations	62,792	61,590
Depreciation and amortization	16,420	15,931
Other income (expense)	(3,678)	(215)
EBITDA	$ 75,534	$ 77,306
Gross profit margin (as a percent)	35.60%	35.00%
EBITDA margin (as a percent)	15.70%	17.40%
Products
Segment Reporting
Total net sales	$ 250,008	$ 249,354
Products (exclusive of depreciation and amortization shown below)	166,036	161,374
Services
Segment Reporting
Total net sales	230,593	195,193
Products (exclusive of depreciation and amortization shown below)	131,952	117,397
Operating Segments | Debit and Credit
Segment Reporting
Total net sales	375,261	361,057
Depreciation and amortization	7,737	7,753
Total cost of sales	247,166	234,281
Gross profit	128,095	126,776
Operating expenses	35,239	31,870
Income from operations	92,856	94,906
EBITDA by segment:
Income (loss) from operations	92,856	94,906
Depreciation and amortization	8,854	9,025
Other income (expense)	(82)	29
EBITDA	$ 101,628	$ 103,960
Gross profit margin (as a percent)	34.10%	35.10%
EBITDA margin (as a percent)	27.10%	28.80%
Operating Segments | Prepaid Debit
Segment Reporting
Total net sales	$ 106,541	$ 84,237
Depreciation and amortization	3,657	2,534
Total cost of sales	63,417	55,524
Gross profit	43,124	28,713
Operating expenses	5,923	3,786
Income from operations	37,201	24,927
EBITDA by segment:
Income (loss) from operations	37,201	24,927
Depreciation and amortization	3,896	2,860
Other income (expense)	(10)	(1)
EBITDA	$ 41,087	$ 27,786
Gross profit margin (as a percent)	40.50%	34.10%
EBITDA margin (as a percent)	38.60%	33.00%
Operating Segments | Other
Segment Reporting
Operating expenses	$ 67,265	$ 58,243
Income from operations	(67,265)	(58,243)
EBITDA by segment:
Income (loss) from operations	(67,265)	(58,243)
Depreciation and amortization	3,670	4,046
Other income (expense)	(3,586)	(243)
EBITDA	(67,181)	(54,440)
Operating Segments | Products | Debit and Credit
Segment Reporting
Total net sales	251,146	250,047
Products (exclusive of depreciation and amortization shown below)	167,174	162,067
Operating Segments | Services | Debit and Credit
Segment Reporting
Total net sales	124,115	111,010
Products (exclusive of depreciation and amortization shown below)	72,255	64,461
Operating Segments | Services | Prepaid Debit
Segment Reporting
Total net sales	106,541	84,237
Products (exclusive of depreciation and amortization shown below)	59,760	52,990
Intersegment eliminations
Segment Reporting
Total net sales	(1,201)	(747)
Total cost of sales	(1,201)	(747)
Intersegment eliminations | Products
Segment Reporting
Total net sales	(1,138)	(693)
Products (exclusive of depreciation and amortization shown below)	(1,138)	(693)
Intersegment eliminations | Services
Segment Reporting
Total net sales	(63)	(54)
Products (exclusive of depreciation and amortization shown below)	$ (63)	$ (54)