Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jan. 31, 2017	Apr. 30, 2016
Current assets:
Cash and cash equivalents	$ 115,721	$ 75,775
Receivables	34,542	27,701
Inventories	209,692	204,988
Prepaid expenses	4,726	3,008
Income tax receivable	11,021	14,413
Total current assets	375,702	325,885
Other assets, net of amortization	20,238	18,981
Goodwill	130,081	128,566
Property and equipment, net of accumulated depreciation of $1,456,308 at January 31, 2017 and $1,340,249 at April 30, 2016	2,450,358	2,252,475
Total assets	2,976,379	2,725,907
Current liabilities:
Current maturities of long-term debt	15,415	15,375
Accounts payable	230,472	241,207
Accrued expenses	140,869	130,989
Total current liabilities	386,756	387,571
Long-term debt, net of current maturities	914,955	822,628
Deferred income taxes	422,334	394,934
Deferred compensation	15,603	17,813
Other long-term liabilities	21,225	19,498
Total liabilities	1,760,873	1,642,444
Shareholders’ equity:
Preferred stock, no par value	0	0
Common stock, no par value	85,714	72,868
Retained earnings	1,129,792	1,010,595
Total shareholders’ equity	1,215,506	1,083,463
Total liabilities and shareholders' equity	$ 2,976,379	$ 2,725,907