Consolidated Statements of Earnings - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues:
Airfreight services	$ 2,453,347	$ 2,740,583	$ 2,780,840
Ocean freight and ocean services	1,917,494	2,194,004	2,174,394
Customs brokerage and other services	1,727,196	1,682,045	1,609,487
Total revenues	6,098,037	6,616,632	6,564,721
Operating Expenses:
Airfreight services	1,752,167	1,987,690	2,103,777
Ocean freight and ocean services	1,378,699	1,648,993	1,712,795
Customs brokerage and other services	803,135	792,172	766,722
Salaries and related costs	1,157,635	1,143,511	1,065,329
Rent and occupancy costs	108,812	102,470	102,810
Depreciation and amortization	46,796	46,012	49,292
Selling and promotion	41,763	41,990	38,125
Other	138,867	132,310	131,223
Total operating expenses	5,427,874	5,895,148	5,970,073
Operating income	670,163	721,484	594,648
Other Income (Expense):
Interest income	11,580	10,421	10,773
Other, net	5,113	4,784	5,468
Other income, net	16,693	15,205	16,241
Earnings before income taxes	686,856	736,689	610,889
Income tax expense	254,323	277,192	231,429
Net earnings	432,533	459,497	379,460
Less net earnings attributable to the noncontrolling interest	1,726	2,274	2,572
Net earnings attributable to shareholders	$ 430,807	$ 457,223	$ 376,888
Diluted earnings attributable to shareholders per share	$ 2.36	$ 2.40	$ 1.92
Basic earnings attributable to shareholders per share	$ 2.38	$ 2.42	$ 1.92
Weighted average diluted shares outstanding	182,704	190,223	196,768
Weighted average basic shares outstanding	181,282	188,941	196,147