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Industry Segment and Geographic Area Data | 9 Months Ended
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Dec. 31, 2014
Segments, Geographical Areas [Abstract] |
11. Industry Segment and Geographic Area Data |
|  | United States |  | Canada |  | Consolidated
|  | (Unaudited)
|  | (All amounts are in thousands of U.S. $'s)
Quarter ended December 31, 2014 |  |  |  |  |  |
Total revenues | $ | 671,311 | $ | 35,044 | $ | 706,355
Depreciation and amortization, net of (gains) losses on disposals |  | 85,038 |  | 1,494 |  | 86,532
Interest expense |  | 25,580 |  | 139 |  | 25,719
Pretax earnings |  | 104,830 |  | 2,603 |  | 107,433
Income tax expense |  | 40,203 |  | 690 |  | 40,893
Identifiable assets |  | 6,715,544 |  | 190,988 |  | 6,906,532
Quarter ended December 31, 2013 |  |  |  |  |  |
Total revenues | $ | 611,428 | $ | 33,903 | $ | 645,331
Depreciation and amortization, net of (gains) losses on disposals |  | 73,684 |  | 1,562 |  | 75,246
Interest expense |  | 23,470 |  | 137 |  | 23,607
Pretax earnings |  | 78,745 |  | 3,621 |  | 82,366
Income tax expense |  | 29,186 |  | 959 |  | 30,145
Identifiable assets |  | 5,731,164 |  | 142,945 |  | 5,874,109
|  | United States |  | Canada |  | Consolidated
|  | (Unaudited)
|  | (All amounts are in thousands of U.S. $'s)
Nine Months ended December 31, 2014 |  |  |  |  |  |
Total revenues | $ | 2,297,289 | $ | 134,512 | $ | 2,431,801
Depreciation and amortization, net of (gains) losses on disposals |  | 218,923 |  | 4,200 |  | 223,123
Interest expense |  | 74,347 |  | 397 |  | 74,744
Pretax earnings |  | 529,537 |  | 19,825 |  | 549,362
Income tax expense |  | 196,847 |  | 5,254 |  | 202,101
Identifiable assets |  | 6,715,544 |  | 190,988 |  | 6,906,532
Nine Months ended December 31, 2013 |  |  |  |  |  |
Total revenues | $ | 2,106,970 | $ | 126,541 | $ | 2,233,511
Depreciation and amortization, net of (gains) losses on disposals |  | 200,209 |  | 5,419 |  | 205,628
Interest expense |  | 69,633 |  | 420 |  | 70,053
Pretax earnings |  | 457,981 |  | 20,281 |  | 478,262
Income tax expense |  | 169,708 |  | 5,374 |  | 175,082
Identifiable assets |  | 5,731,164 |  | 142,945 |  | 5,874,109

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- Definition Tabular disclosure of the names of foreign countries from which revenue is material and the amount of revenue from external customers attributed to those countries. An entity may also provide subtotals of geographic information about groups of countries. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599 + Details
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