CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current assets
Cash and cash equivalents	$ 8,048	$ 40,041
Accounts receivable trade, net of allowance for doubtful accounts of $2,203 and $2,144, respectively	103,180	75,892
Accounts receivable, related parties	279	135
Inventories	940	1,001
Prepaid expenses and other current assets	5,683	7,586
Total current assets	118,130	124,655
Property and equipment	756,124	739,386
Accumulated depreciation	(500,541)	(490,519)
Property and equipment, net	255,583	248,867
Goodwill	22,975	12,242
Other intangible assets, net	36,017	11,586
Other assets	8,410	7,716
Total assets	441,115	405,066
Current liabilities
Accounts payable	13,012	10,796
Accounts payable and accrued expenses, related parties	666	648
Accrued salaries and benefits	6,431	2,511
Accrued insurance	9,351	10,338
Accrued expenses and other current liabilities	24,031	22,091
Total current liabilities	53,491	46,384
Accrued lease obligations	17,282	15,946
Other long term liabilities	7,771	8,028
Long-term debt, net of current maturities	34,000
Total liabilities	112,544	70,358
Commitments and contingencies (Note 8)
Preferred stock
Additional paid-in capital	115,891	113,175
Accumulated deficit	(5,215)	(1,043)
Total stockholders’ equity	111,263	112,716
Noncontrolling interests	217,308	221,992
Total equity	328,571	334,708
Total liabilities and equity	441,115	405,066
Class A-1 common stock
Current liabilities
Common stock	161	161
Total equity	161	161
Class A common stock
Current liabilities
Common stock	41	38
Total equity	41	38
Class B common stock
Current liabilities
Common stock	385	385
Total equity	$ 385	$ 385