Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Disclosure - Income Taxes - Additional Information [Abstract]
Deferred Income Taxes and Other Assets, Noncurrent		$ 34,200
Earnings from Continuing Operations before Income Taxes [Abstract]
United States	$ 146,940	113,967	$ 118,269
Foreign	158,506	135,562	110,717
Earnings from continuing operations before income taxes	305,446	249,529	228,986
Current tax expense (benefit):
Federal	35,029	30,224	38,249
State	6,074	5,511	4,413
Foreign	19,884	11,389	13,483
Current income tax expense (benefit)	60,987	47,124	56,145
Deferred tax expense (benefit):
Federal	10,752	1,207	(252)
State	1,052	(1,115)	(335)
Foreign	(9,031)	2,052	(3,587)
Deferred income tax expense (benefit)	2,773	2,144	(4,174)
Total provision	$ 63,760	49,268	$ 51,971
Deferred Income Taxes and Other Tax Liabilities, Noncurrent		$ 4,700