Condensed Consolidated Statements of Earnings - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Revenues:
Airfreight services	$ 582,093	$ 693,812	$ 1,142,946	$ 1,401,256
Ocean freight and ocean services	464,692	576,772	918,884	1,142,489
Customs brokerage and other services	428,379	420,969	831,806	825,334
Total revenues	1,475,164	1,691,553	2,893,636	3,369,079
Operating Expenses:
Airfreight services	403,419	506,988	792,196	1,019,989
Ocean freight and ocean services	323,699	433,356	646,719	878,812
Customs brokerage and other services	194,929	199,068	384,535	388,651
Salaries and related costs	293,532	287,065	576,887	565,943
Rent and occupancy costs	27,079	24,971	53,938	50,359
Depreciation and amortization	11,642	11,420	22,971	22,949
Selling and promotion	10,251	10,529	19,683	19,776
Other	31,749	35,440	66,017	71,001
Total operating expenses	1,296,300	1,508,837	2,562,946	3,017,480
Operating income	178,864	182,716	330,690	351,599
Other Income (Expense):
Interest income	2,890	2,636	5,669	5,368
Other, net	1,603	3,804	2,482	3,838
Other income, net	4,493	6,440	8,151	9,206
Earnings before income taxes	183,357	189,156	338,841	360,805
Income tax expense	66,918	70,827	125,355	135,144
Net earnings	116,439	118,329	213,486	225,661
Less net earnings attributable to the noncontrolling interest	387	569	850	1,197
Net earnings attributable to shareholders	$ 116,052	$ 117,760	$ 212,636	$ 224,464
Diluted earnings attributable to shareholders per share	$ 0.63	$ 0.61	$ 1.16	$ 1.17
Basic earnings attributable to shareholders per share	0.64	0.62	1.17	1.17
Dividends declared and paid per common share	$ 0.40	$ 0.36	$ 0.40	$ 0.36
Weighted average diluted shares outstanding	183,132	191,918	183,110	192,426
Weighted average basic shares outstanding	181,753	190,679	181,882	191,151