Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current Assets:
Cash and cash equivalents	$ 106,217	$ 119,199
Accounts receivable, net	29,738	34,705
Prepaid assets	15,772	10,824
Total current assets	151,727	164,728
Property, plant and equipment, net	632,692	640,567
Intangibles, net	496,744	496,770
Goodwill	85,488	85,488
Other assets	11,013	11,252
Total assets	1,377,664	1,398,805
Current Liabilities:
Accounts payable and accrued liabilities	78,559	95,288
Deferred revenue	22,392	22,363
Income taxes payable	17,196	5,431
Long-term debt - current portion	4,375	3,750
Total current liabilities	122,522	126,832
Long-term debt	534,663	535,511
Accrued compensation and related benefits	24,192	24,399
Other liabilities	152	90
Deferred income taxes	273,957	276,627
Total liabilities	$ 955,486	$ 963,459
Commitments and contingencies (see Note 15)
Stockholders' Equity
Common stock ($0.01 par value; 40,000,000 shares authorized; 5,886,163 and 5,879,925 shares issued, and 5,757,121 and 5,833,442 shares outstanding as of March 31, 2016 and December 31, 2015, respectively)	$ 59	$ 59
Additional paid-in capital	7,975	4,929
Retained earnings	465,632	447,282
Accumulated other comprehensive loss	(530)	(557)
Treasury stock, at cost (129,042 and 46,483 shares held as of March 31, 2016 and December 31, 2015, respectively)	(50,958)	(16,367)
Total stockholders' equity	422,178	435,346
Total liabilities and stockholders' equity	$ 1,377,664	$ 1,398,805

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.