Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Cash and cash equivalents (HEP: $6,941 and $3,045, respectively)	$ 914,644	$ 1,154,752
Accounts receivable: Product and transportation (HEP: $15,074 and $12,332, respectively)	747,725	635,623
Materials, supplies and other (HEP: $900 and $858, respectively)	196,896	187,975
Prepayments and other (HEP: $2,983 and $3,452, respectively)	51,230	81,507
Properties, plants and equipment, at cost (HEP: $2,071,467 and $2,058,388, respectively)	7,066,375	6,780,980
Less accumulated depreciation (HEP: $(535,019) and $(489,217), respectively)	(2,263,405)	(2,098,446)
Operating lease right-of-use assets	449,745	0
Goodwill (HEP: $312,873 and $314,229, respectively)	2,375,651	2,246,435
Intangibles and other (HEP: $169,678 and $176,291, respectively)	637,530	429,392
Accounts payable (HEP $10,659 and $16,723, respectively)	1,199,311	872,627
Operating lease liabilities (HEP $5,346)	93,991	0
Long-term debt (HEP: $1,437,710 and $1,418,900, respectively)	2,430,832	2,411,540
Deferred income taxes (HEP: $423 and $488, respectively)	877,456	722,576
Other long-term liabilities (HEP: $61,195 and $63,534, respectively)	243,542	233,271
Noncurrent operating lease liability (HEP: $71,550)	357,635	$ 0
Current maturities of finance leases (HEP $877)	$ 1,649
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	256,036,760	256,036,788
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	90,138,137	83,915,297
HEP
Cash and cash equivalents (HEP: $6,941 and $3,045, respectively)	$ 6,941	$ 3,045
Accounts receivable: Product and transportation (HEP: $15,074 and $12,332, respectively)	15,074	12,332
Materials, supplies and other (HEP: $900 and $858, respectively)	900	858
Prepayments and other (HEP: $2,983 and $3,452, respectively)	2,983	3,452
Properties, plants and equipment, at cost (HEP: $2,071,467 and $2,058,388, respectively)	2,071,467	2,058,388
Less accumulated depreciation (HEP: $(535,019) and $(489,217), respectively)	(535,019)	(489,217)
Operating lease right-of-use assets	76,551	0
Goodwill (HEP: $312,873 and $314,229, respectively)	312,873	314,229
Intangibles and other (HEP: $169,678 and $176,291, respectively)	169,678	176,291
Accounts payable (HEP $10,659 and $16,723, respectively)	10,659	16,723
Operating lease liabilities (HEP $5,346)	5,346	0
Accrued Liabilities (HEP: $22,555 and $27,240, respectively)	29,444	27,240
Long-term debt (HEP: $1,437,710 and $1,418,900, respectively)	1,437,710	1,418,900
Deferred income taxes (HEP: $423 and $488, respectively)	423	488
Other long-term liabilities (HEP: $61,195 and $63,534, respectively)	61,195	63,534
Noncurrent operating lease liability (HEP: $71,550)	$ 71,550	$ 0