Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents	$ 18,449	$ 25,615
Restricted cash	4,977	18,239
Accounts receivable, net of allowance for doubtful accounts of $8,348 and $4,359, respectively	266,660	270,812
Related party receivables	206	0
Inventories, net	16,735	16,220
Prepaid expenses and other current assets	23,791	25,015
Total current assets	330,818	355,901
Property, plant and equipment, net of accumulated depreciation of $167,376 and $154,060 respectively	125,018	132,986
Operating lease right-of-use asset, net	96,498
Goodwill	708,246	708,258
Intangible assets, net	387,775	407,021
Deferred income tax assets	16,181	16,225
Other noncurrent assets	14,714	19,391
Total assets	1,679,250	1,639,782
Current liabilities
Accounts payable	99,089	99,853
Related party payables	238	7,735
Income tax payable	2,525	1,996
Accrued liabilities	59,487	66,008
Accrued compensation and benefits	52,493	54,583
Accrued interest	48,935	49,071
Customer deposits	28,914	34,235
Deferred revenue	19,428	16,504
Obligation for claim payment	41,496	56,002
Current portion of finance lease liability	15,897	17,498
Current portion of operating lease liability	27,444
Current portion of long-term debt	38,929	29,237
Total current liabilities	434,875	432,722
Long-term debt, net of current maturities	1,331,898	1,306,423
Finance lease obligations, net of current portion	25,772	26,738
Pension liability	24,866	25,269
Deferred income tax liabilities	15,896	11,212
Long-term income tax liability	2,842	3,024
Operating lease liability, net of current portion	74,290
Other long-term liabilities	7,882	15,400
Total liabilities	1,918,321	1,820,788
Commitment and Contingencies (Note 9)
Stockholders' equity (deficit)
Common stock, par value of $0.0001 per share; 1,600,000,000 shares authorized; 152,782,534 shares issued and 150,007,085 shares outstanding at June 30, 2019 and 152,692,140 shares issued and 150,142,955 shares outstanding at December 31, 2018	15	15
Preferred stock, par value of $0.0001 per share; 20,000,000 shares authorized; 4,569,233 shares issued and outstanding at June 30, 2019 and December 31, 2018	1	1
Additional paid in capital	482,018	482,018
Less: common stock held in treasury, at cost; 2,787,147 shares at June 30, 2019 and 2,549,185 shares December 31, 2018	(10,949)	(10,342)
Equity-based compensation	47,190	41,731
Accumulated deficit	(742,616)	(678,563)
Accumulated other comprehensive loss:
Foreign currency translation adjustment	(5,461)	(6,565)
Unrealized pension actuarial losses, net of tax	(9,269)	(9,301)
Total accumulated other comprehensive loss	(14,730)	(15,866)
Total stockholders’ deficit	(239,071)	(181,006)
Total liabilities and stockholders’ deficit	$ 1,679,250	$ 1,639,782