CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current Assets:
Cash and cash equivalents	$ 109,790	$ 41,281
Receivables, net	240,378	255,310
Prepaid expenses and other current assets	27,080	25,136
Income taxes receivable	10,332	11,244
Total current assets	387,580	332,971
Property and equipment, net	485,325	478,768
Operating lease assets	55,843	57,396
Restricted cash and investments	5,168	5,069
Intangible assets, net	564,124	574,902
Goodwill	466,031	766,980
Other assets	14,568	15,158
Total assets	1,978,639	2,231,244
Current Liabilities:
Accounts payable	51,387	46,906
Deferred revenue	21,698	14,788
Accrued liabilities	50,245	65,869
Accrued salaries and benefits	22,069	29,653
Income taxes payable	1,324	726
Short-term borrowings	396
Current portion of long-term debt	3,358	3,359
Current portion of closure and post-closure obligations	2,704	2,152
Current portion of operating lease liabilities	17,813	17,317
Total current liabilities	170,994	180,770
Long-term debt	855,003	765,842
Long-term closure and post-closure obligations	84,392	84,231
Long-term operating lease liabilities	38,092	39,954
Other long-term liabilities	31,439	20,722
Deferred income taxes, net	122,396	128,345
Total liabilities	1,302,316	1,219,864
Commitments and contingencies (See Note 18)
Stockholders' Equity:
Common stock $0.01 par value per share, 50,000 authorized; 31,503 and 31,461 shares issued and outstanding, respectively	315	315
Additional paid-in capital	817,730	816,345
Retained (deficit) earnings	(97,179)	206,574
Treasury stock, at cost, 415 and 0 shares, respectively	(18,332)
Accumulated other comprehensive loss	(26,211)	(11,854)
Total stockholders' equity	676,323	1,011,380
Total liabilities and stockholders' equity	$ 1,978,639	$ 2,231,244