Discontinued Operations (Financial Information) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations, net of tax	$ (3,032)	$ (5,613)	$ 7,032	$ (5,729)
Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	0	72,206	0	145,524
Earnings (loss) from discontinued operations	0	1,342	0	2,275
Gain (loss) on sale	(3,171)	(8,589)	6,702	(9,257)
Income (loss) from discontinued operations before taxes	(3,171)	(7,247)	6,702	(6,982)
Tax benefit	(139)	(1,634)	(330)	(1,253)
Income (loss) from discontinued operations, net of tax	(3,032)	(5,613)	7,032	(5,729)
Software Solutions \| Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	0	72,206	0	145,524
Earnings (loss) from discontinued operations	0	1,342	0	2,938
Gain (loss) on sale	(3,416)	0	6,869	0
Income (loss) from discontinued operations before taxes	(3,416)	1,342	6,869	2,938
Production Mail \| Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	0	0	0	0
Earnings (loss) from discontinued operations	0	0	0	(663)
Gain (loss) on sale	245	(8,589)	(167)	(9,257)
Income (loss) from discontinued operations before taxes	$ 245	$ (8,589)	$ (167)	$ (9,920)

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