Business segment information (Details) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2020 USD ($) segment	Mar. 31, 2019 USD ($)	Dec. 31, 2019 segment
Business segment information [Line Items]
Number of reportable business segments \| segment	4		3
Revenue	$ 486,423	$ 499,065
Adjusted EBITDA	134,852	159,751
Depreciation and amortization	(28,430)	(32,419)
Interest expense	(6,999)	(9,301)
Asset impairment charges	(90,330)	0
Restructuring integration and other costs	(19,633)	(6,283)
CEO transition costs	180	(5,488)
Share-based compensation expense	(3,618)	(3,760)
Share-based compensation expense		(3,291)
Acquisition transaction costs	(9)	(177)
Certain legal-related expenses	2,164	(412)
Loss on sales of businesses and customer lists	0	(99)
(Loss) income before income taxes	(63,341)	56,238
Reportable business segments [Member] \| Payments [Member]
Business segment information [Line Items]
Revenue	77,040	65,150
Adjusted EBITDA	18,023	16,867
Reportable business segments [Member] \| Cloud Solutions [Member]
Business segment information [Line Items]
Revenue	75,945	78,288
Adjusted EBITDA	14,920	17,060
Reportable business segments [Member] \| Promotional Solutions [Member]
Business segment information [Line Items]
Revenue	142,794	155,829
Adjusted EBITDA	11,197	23,590
Reportable business segments [Member] \| Checks [Member]
Business segment information [Line Items]
Revenue	190,644	199,798
Adjusted EBITDA	90,712	102,234
Corporate [Member]
Business segment information [Line Items]
Adjusted EBITDA	$ (51,518)	$ (46,043)

Adjusted EBITDA reported as the entity's measure of segment profitability.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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