- Net Deferred Income Taxes (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred income taxes:
Inventories	$ 13,252	$ 10,047
Accrued expenses	152,798	107,767
Derivative instruments	(175)	(1,112)
Cost in excess of net assets of business acquired	(10,257)	(7,956)
Property and equipment	(56,240)	(28,853)
Compensation payable in common stock	73,297	67,222
Net operating loss carryforwards and impairments	13,650	12,374
Valuation allowance	(6,981)	(6,684)
Total net deferred income tax asset	$ 179,344	$ 152,805