Revenue (Tables)

6 Months Ended

Jun. 30, 2018

Geographic Areas, Revenues from External Customers [Abstract]

Schedule of Revenue by Geographic Region

The table below includes a reconciliation of disaggregated revenue with the Company’s reportable segment:

	Three Months Ended June 30,						Three Months Ended June 30,						Six Months Ended June 30,						Six Months Ended June 30,
	2018						2017						2018						2017
	Implant-based		Shipment-based		Total		Implant-based		Shipment-based		Total		Implant-based		Shipment-based		Total		Implant-based		Shipment-based		Total
United States	$	28,416	$	1,570	$	29,986	$	31,473	$	433	$	31,906	$	57,286	$	2,075	$	59,361	$	61,985	$	810	$	62,795
International	5,850		8,904		14,754		5,934		10,716		16,650		11,392		16,271		27,663		10,712		17,661		28,373
Total Revenue	$	34,266	$	10,474	$	44,740	$	37,407	$	11,149	$	48,556	$	68,678	$	18,346	$	87,024	$	72,697	$	18,471	$	91,168

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