Industry Segment and Geographic Area Data (Table Text Block)

3 Months Ended

Jun. 30, 2013

Geographic Areas, Long-Lived Assets [Abstract]

Industry Segment and Geographic Area Data

		United States		Canada		Consolidated
		(Unaudited)
		(All amounts are in thousands of U.S. $'s)
Quarter ended June 30, 2013
Total revenues	$	703,963	$	42,868	$	746,831
Depreciation and amortization, net of (gains) losses on disposals		59,170		1,947		61,117
Interest expense		23,186		142		23,328
Pretax earnings		171,756		7,292		179,048
Income tax expense		64,148		1,932		66,080
Identifiable assets		5,425,667		153,095		5,578,762
Quarter ended June 30, 2012
Total revenues	$	626,183	$	41,493	$	667,676
Depreciation and amortization, net of (gains) losses on disposals		56,963		1,973		58,936
Interest expense		23,339		152		23,491
Pretax earnings		119,384		8,004		127,388
Income tax expense		44,698		2,121		46,819
Identifiable assets		4,690,153		148,683		4,838,836