EARNINGS (LOSS) PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Earnings (loss) per share - basic:
Net income (loss)					$ 62,772	$ 5,335	$ (223,779)
Net income attributable to non-controlling interest					(139)	(91)	0
Net income (loss) attributable to Deluxe	$ 24,663	$ 29,417	$ 14,859	$ (63,695)	62,633	5,244	(223,779)
Income allocated to participating securities					(46)	(53)	(101)
Income (loss) attributable to Deluxe available to common shareholders					$ 62,587	$ 5,191	$ (223,880)
Weighted-average shares outstanding					42,378	41,931	43,029
Earnings (loss) per share - basic	$ 0.59	$ 0.70	$ 0.36	$ (1.52)	$ 1.48	$ 0.12	$ (5.20)
Earnings (loss) per share - diluted:
Net income (loss)					$ 62,772	$ 5,335	$ (223,779)
Net income attributable to non-controlling interest					(139)	(91)	0
Net income (loss) attributable to Deluxe	$ 24,663	$ 29,417	$ 14,859	$ (63,695)	62,633	5,244	(223,779)
Income allocated to participating securities					(26)	(2)	(101)
Re-measurement of share-based awards classified as liabilities					(438)	(677)	0
Income (loss) attributable to Deluxe available to common shareholders					$ 62,169	$ 4,565	$ (223,880)
Weighted-average shares outstanding					42,378	41,931	43,029
Dilutive impact of potential common shares					449	211	0
Weighted-average shares and potential common shares outstanding					42,827	42,142	43,029
Earnings (loss) per share - diluted	$ 0.58	$ 0.70	$ 0.35	$ (1.53)	$ 1.45	$ 0.11	$ (5.20)
Antidilutive options excluded from calculation					2,179	2,060	1,347