Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Cash and cash equivalents (HEP: $6,375 and $7,776, respectively)	$ 1,075,677	$ 630,757
Accounts receivable: Product and transportation (HEP: $10,301 and $12,803, respectively)	828,629	659,530
Materials, supplies and other (HEP: $918 and $916, respectively)	226,639	220,554
Prepayments and other (HEP: $1,794 and $1,395, respectively)	57,066	36,909
Properties, plants and equipment, at cost (HEP: $2,039,922 and $2,011,915, respectively)	6,704,162	6,523,789
Less accumulated depreciation (HEP: $(467,862) and $(408,599), respectively)	(2,030,719)	(1,810,515)
Goodwill (HEP: $314,229 and $310,610, respectively)	2,255,541	2,244,744
Intangibles and other (HEP: $183,288 and $206,167, respectively)	435,816	439,989
Accounts payable (HEP $9,987 and $14,637, respectively)	1,176,417	1,220,795
Accrued liabilities (HEP: $29,182 and $33,214, respectively)	285,902	198,756
Long-term debt (HEP: $1,416,748 and $1,507,308, respectively)	2,409,148	2,498,993
Deferred income taxes (HEP: $558 and $525, respectively)	755,561	647,785
Other long-term liabilities (HEP: $63,106 and $62,590, respectively)	$ 226,270	$ 225,726
HollyFrontier Stockholders' Equity:
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	320,000,000	320,000,000
Common stock, shares issued	256,015,579	256,015,550
Preferred stock, par value	$ 1.00	$ 1.00
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Treasury stock, shares	81,558,916	78,607,928
HEP
Cash and cash equivalents (HEP: $6,375 and $7,776, respectively)	$ 6,375	$ 7,776
Accounts receivable: Product and transportation (HEP: $10,301 and $12,803, respectively)	10,301	12,803
Materials, supplies and other (HEP: $918 and $916, respectively)	918	916
Prepayments and other (HEP: $1,794 and $1,395, respectively)	1,794	1,395
Properties, plants and equipment, at cost (HEP: $2,039,922 and $2,011,915, respectively)	2,039,922	2,011,915
Less accumulated depreciation (HEP: $(467,862) and $(408,599), respectively)	(467,862)	(408,599)
Goodwill (HEP: $314,229 and $310,610, respectively)	314,229	310,610
Intangibles and other (HEP: $183,288 and $206,167, respectively)	183,288	206,167
Accounts payable (HEP $9,987 and $14,637, respectively)	9,987	14,637
Accrued liabilities (HEP: $29,182 and $33,214, respectively)	29,182	33,214
Long-term debt (HEP: $1,416,748 and $1,507,308, respectively)	1,416,748	1,507,308
Deferred income taxes (HEP: $558 and $525, respectively)	558	525
Other long-term liabilities (HEP: $63,106 and $62,590, respectively)	$ 63,106	$ 62,590