Acquisitions (Details) $ / shares in Units, $ in Thousands, € in Millions			3 Months Ended
	Apr. 05, 2017 USD ($)	Apr. 05, 2017 EUR (€)	Mar. 31, 2017 USD ($) $ / shares	Mar. 31, 2016 USD ($) $ / shares	Dec. 31, 2016 USD ($)
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired			$ 0	$ 436,058
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net					$ 1,562,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Business Combination, Assets and Liabilities Arising from Contingencies, Amount Recognized, Net					$ 1,559,000
Revenue [Abstract]
As reported			1,813,372	1,622,273
Pro forma			1,813,372	1,820,228
Net earnings [Abstract]
As reported			172,247	99,356
Pro forma			$ 172,247	$ 110,690
Basic earnings per share [Abstract]
As reported (in dollars per share) | $ / shares			$ 1.11	$ 0.64
Pro forma (in dollars per share) | $ / shares			1.11	0.71
Diluted earnings per share [Abstract]
As reported (in dollars per share) | $ / shares			1.09	0.64
Pro forma (in dollars per share) | $ / shares			$ 1.09	$ 0.71
Caldera Graphics [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross	$ 37,000	€ 35.0
Business Combination, Acquisition of 100 Percent, Voting Rights	100.00%	100.00%
Tokheim Group S.A.S. [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross				$ 417,238