CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net income (loss)	$ (91,568)	$ 30,879
Adjustments to reconcile net income to cash provided by operating activities:
Loss from discontinued operations, net of tax		273
Depreciation and amortization	98,671	89,588
Long-lived asset impairment	61,405	11,724
Goodwill impairment	99,830
Inventory write-downs	695	492
Amortization of operating lease ROU assets	1,627	1,425
Amortization of deferred financing costs	2,856	3,041
Amortization of debt discount	187	545
Debt extinguishment loss	3,971	3,653
Interest rate swaps	928	(802)
Stock-based compensation expense	5,778	3,869
Non-cash restructuring charges	162
Provision for credit losses	2,282	335
(Gain) loss on sale of assets, net	1,245	(1,785)
Gain on March 2020 Disposition	(3,172)
Deferred income tax benefit	(24,117)	(1,819)
Amortization of contract costs	13,656	10,724
Deferred revenue recognized in earnings	(12,762)	(25,227)
Changes in assets and liabilities:
Accounts receivable, trade	17,569	(5,015)
Inventory	2,615	2,160
Other assets	(4,268)	12,817
Contract costs, net	(8,129)	(14,128)
Accounts payable and other liabilities	(10,829)	6,102
Deferred revenue	8,253	19,747
Other	189	65
Net cash provided by operating activities	167,074	148,663
Cash flows from investing activities:
Capital expenditures	(113,289)	(234,972)
Proceeds from March 2020 Disposition	24,179
Proceeds from sale of property, plant and equipment and other assets	5,071	21,954
Proceeds from insurance and other settlements	1,351	676
Net cash used in investing activities	(82,688)	(212,342)
Cash flows from financing activities:
Borrowings of long-term debt	722,500	1,254,000
Repayments of long-term debt	(762,500)	(1,151,000)
Payments for debt issuance costs	(943)	(8,829)
Proceeds from (payments for) settlement of interest rate swaps that include financing elements	(787)	800
Dividends paid to stockholders	(44,347)	(34,437)
Proceeds from stock issued under employee stock purchase plan	367	407
Purchases of treasury stock	(834)	(857)
Contribution from Exterran Corporation	678
Net cash provided by (used in ) financing activities	(85,866)	60,084
Net decrease in cash and cash equivalents	(1,480)	(3,595)
Cash and cash equivalents, beginning of period	3,685	5,610
Cash and cash equivalents, end of period	$ 2,205	$ 2,015