Condensed Consolidated Statements of Earnings - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenues:
Airfreight services	$ 621,566	$ 659,607	$ 1,764,512	$ 2,060,863
Ocean freight and ocean services	495,460	559,976	1,414,344	1,702,465
Customs brokerage and other services	445,368	431,749	1,277,174	1,257,083
Total revenues	1,562,394	1,651,332	4,456,030	5,020,411
Operating Expenses:
Airfreight services	444,359	464,161	1,236,555	1,484,150
Ocean freight and ocean services	359,991	416,075	1,006,710	1,294,887
Customs brokerage and other services	212,785	201,115	597,320	589,766
Salaries and related costs	291,204	295,566	868,091	861,509
Rent and occupancy costs	27,091	25,747	81,029	76,106
Depreciation and amortization	11,882	11,475	34,853	34,424
Selling and promotion	10,134	10,370	29,817	30,146
Other	37,685	34,930	103,702	105,931
Total operating expenses	1,395,131	1,459,439	3,958,077	4,476,919
Operating income	167,263	191,893	497,953	543,492
Other Income (Expense):
Interest income	2,924	2,666	8,593	8,034
Other, net	925	(3,085)	3,407	753
Other income (expense), net	3,849	(419)	12,000	8,787
Earnings before income taxes	171,112	191,474	509,953	552,279
Income tax expense	63,163	72,738	188,518	207,882
Net earnings	107,949	118,736	321,435	344,397
Less net earnings attributable to the noncontrolling interest	368	426	1,218	1,623
Net earnings attributable to shareholders	$ 107,581	$ 118,310	$ 320,217	$ 342,774
Diluted earnings attributable to shareholders per share	$ 0.59	$ 0.62	$ 1.75	$ 1.79
Basic earnings attributable to shareholders per share	0.59	0.63	1.76	1.80
Dividends declared and paid per common share	$ 0.00	$ 0.00	$ 0.40	$ 0.36
Weighted average diluted shares outstanding	182,692	189,642	182,958	191,448
Weighted average basic shares outstanding	181,177	188,424	181,645	190,232