Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net income	$ 122,567	$ 48,340
Adjustments to reconcile net income to net cash provided by operating activities:
Income from discontinued operations, net	(122,109)	(4,969)
Depreciation, depletion and amortization	6,597	3,403
Deferred income taxes	(2,187)	19,620
Equity in loss of joint ventures	36	1,589
Gain on remeasurement of investment in real estate partnership	0	(60,196)
Gain on sale of equipment	(19)	(15)
Stock-based compensation	1,169	588
Realized loss on available for sale investments	290	0
Net changes in operating assets and liabilities:
Accounts receivable	(123)	(102)
Deferred costs and other assets	(909)	473
Accounts payable and accrued liabilities	673	(346)
Income taxes payable and receivable	940	(2,739)
Other long-term liabilities	(1,943)	25
Net cash provided by operating activities of continuing operations	4,982	5,671
Net cash (used in) provided by operating activities of discontinued operations	(46,642)	9,650
Net cash (used in) provided by operating activities	(41,660)	15,321
Cash flows from investing activities:
Investments in properties	(5,729)	(2,492)
Investments in joint ventures	(7,160)	(621)
Purchases of investments available for sale	(313,306)	0
Proceeds from sales of investments available for sale	121,161	0
Proceeds from the sale of assets	77	16
Cash at consolidation of real estate partnership	0	2,295
Cash held in escrow	(33,937)	(15)
Net cash used in investing activities of continuing operations	(238,894)	(817)
Net cash provided by (used in) investing activities of discontinued operations	340,744	(10,103)
Net cash provided by (used in) investing activities	101,850	(10,920)
Cash flows from financing activities:
Distribution to noncontrolling interest	(765)	0
Decrease in bank overdrafts	0	(254)
Proceeds from long-term debt	0	43
Repayment of long-term debt	(1,552)	(166)
Payment on revolving credit facility	0	(754)
Debt issue costs	0	(21)
Repurchase of Company Stock	0	(74)
Exercise of employee stock options	1,231	2,127
Net cash (used in) provided by financing activities of continuing operations	(1,086)	901
Net cash used in financing activities of discontinued operations	(28,846)	(2,672)
Net cash used in financing activities	(29,932)	(1,771)
Net increase in cash and cash equivalents	30,258	2,630
Cash and cash equivalents at beginning of period	4,524	0
Cash and cash equivalents at end of the period	$ 34,782	$ 2,630