Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Consolidated Statements of Operations
Revenue	$ 138,113	$ 123,772	$ 421,175	$ 382,633
Cost of revenue	91,925	84,408	273,322	255,497
Gross margin	46,188	39,364	147,853	127,136
Selling, general and administrative	34,359	28,604	102,138	93,172
Gain on settlement	(2,817)		(26,291)
Operating income	14,646	10,760	72,006	33,964
Interest expense	13,140	13,474	40,128	40,366
Income (loss) before income taxes and noncontrolling interest	1,506	(2,714)	31,878	(6,402)
Provision for income taxes	134	393	767	888
Consolidated net income (loss)	1,372	(3,107)	31,111	(7,290)
Net income attributable to noncontrolling interest	75	125	241	295
Net income (loss) attributable to Universal Hospital Services, Inc. and Subsidiaries	$ 1,297	$ (3,232)	$ 30,870	$ (7,585)

The aggregate cost of goods produced and sold and services rendered during the reporting period.

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