Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
CURRENT ASSETS:
Cash and cash equivalents	$ 74,078	$ 47,081
Accounts receivable, net	97,493	310,731
Inventories	129,849	85,890
Prepaid expenses and other assets	73,069	31,882
Total current assets	374,489	475,584
Property, plant and equipment, net	602,409	574,584
Goodwill	16,080	16,080
Intangible assets, net	30,301	30,941
Investments	12,181	8,797
Other assets	12,215	11,819
Restricted cash	105,815	105,815
TOTAL ASSETS	1,153,490	1,223,620
CURRENT LIABILITIES:
Lines of credit	48,603	23,149
Current maturities of long-term debt	7,959	5,206
Accounts payable	83,343	236,817
Accrued expenses and other liabilities	25,978	28,466
Deferred revenue	2,090	333
Total current liabilities	167,973	293,971
Unfavorable lease obligation	16,429	17,343
Deferred income taxes	18,779	19,186
Contingent consideration for acquisitions	34,366	26,949
Convertible debt conversion liability	26,713	0
Long-term debt (net of debt issuance costs of $6,748 and $4,105, respectively)	306,207	247,251
Other liabilities	4,724	4,910
Total liabilities	575,191	609,610
COMMITMENTS AND CONTINGENCIES
EQUITY:
Common stock ($.0001 par value; 300,000,000 shares authorized; 39,179,201 and 43,837,714 shares outstanding, respectively)	5	4
Common stock—additional paid-in-capital	477,169	474,367
Retained earnings	178,352	169,680
Accumulated other comprehensive loss	(3,598)	(4,009)
Treasury stock (8,617,567 and 3,178,372 shares outstanding, respectively)	(76,219)	(28,762)
Total equity attributable to the Company's shareholders	575,709	611,280
Non-controlling interest	2,590	2,730
Total equity	578,299	614,010
TOTAL LIABILITIES AND EQUITY	$ 1,153,490	$ 1,223,620