Inventory

12 Months Ended

Dec. 31, 2018

Inventory Disclosure [Abstract]

Inventory

8. Inventory

The components of inventory are summarized as follows:

	December 31, 2018
	(in thousands)
Raw materials	$	1,880
Work in process		215,122
Finished goods		18,182
Total inventory	$	235,184
	December 31, 2018
	(in thousands)
Balance Sheet Classification:
Inventory	$	114,245
Other assets		120,939
Total inventory	$	235,184

Long-term inventory, which primarily consists of raw materials and work in process, is included in other assets in the Company’s consolidated balance sheets.

There were no inventory amounts written down as a result of excess, obsolescence, scrap or other reasons that would be charged to cost of sales during the period from December 12, 2018 through December 31, 2018. If future sales of Auryxia are lower than expected, the Company may be required to write-down the value of such inventories. Inventory write-downs and losses on purchase commitments are recorded as a component of cost of sales in the consolidated statement of operations.