Revenue Revenue - Timing of Revenue Recognition (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disaggregation of Revenue [Line Items]
Revenue	$ 1,015,021	$ 993,260	$ 992,065
Transferred at a Point in Time
Disaggregation of Revenue [Line Items]
Revenue	853,546	836,828	845,570
Transferred Over Time
Disaggregation of Revenue [Line Items]
Revenue	161,475	156,432	146,495
Non-Recurring
Disaggregation of Revenue [Line Items]
Revenue	678,478	667,927	688,095
Recurring
Disaggregation of Revenue [Line Items]
Revenue	336,543	325,333	303,970
Industrial Inkjet
Disaggregation of Revenue [Line Items]
Revenue	607,559	570,688	562,583
Industrial Inkjet | Transferred at a Point in Time
Disaggregation of Revenue [Line Items]
Revenue	586,079	548,021	541,084
Industrial Inkjet | Transferred Over Time
Disaggregation of Revenue [Line Items]
Revenue	21,480	22,667	21,499
Industrial Inkjet | Non-Recurring
Disaggregation of Revenue [Line Items]
Revenue	380,672	349,372	356,043
Industrial Inkjet | Recurring
Disaggregation of Revenue [Line Items]
Revenue	226,887	221,316	206,540
Productivity Software
Disaggregation of Revenue [Line Items]
Revenue	168,284	156,561	151,737
Productivity Software | Transferred at a Point in Time
Disaggregation of Revenue [Line Items]
Revenue	46,458	37,438	41,120
Productivity Software | Transferred Over Time
Disaggregation of Revenue [Line Items]
Revenue	121,826	119,123	110,617
Productivity Software | Non-Recurring
Disaggregation of Revenue [Line Items]
Revenue	76,797	67,186	68,686
Productivity Software | Recurring
Disaggregation of Revenue [Line Items]
Revenue	91,487	89,375	83,051
Fiery
Disaggregation of Revenue [Line Items]
Revenue	239,178	266,011	277,745
Fiery | Transferred at a Point in Time
Disaggregation of Revenue [Line Items]
Revenue	221,009	251,369	263,366
Fiery | Transferred Over Time
Disaggregation of Revenue [Line Items]
Revenue	18,169	14,642	14,379
Fiery | Non-Recurring
Disaggregation of Revenue [Line Items]
Revenue	221,009	251,369	263,366
Fiery | Recurring
Disaggregation of Revenue [Line Items]
Revenue	$ 18,169	$ 14,642	$ 14,379