Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2018

Recently Adopted Accounting Standards

Schedule of remaining performance obligations

	Period from April 1, 2018 to December 31, 2018		2019		Thereafter		Total
Product sales	$	505,344	$	600,003	$	4,836,670	$	5,942,017
Other revenue		531		708		1,180		2,419
Total revenue	$	505,875	$	600,711	$	4,837,850	$	5,944,436

Accounting Standards Update 2014-09

Recently Adopted Accounting Standards

Schedule of impact of adoption of ASC 606

	As Reported		Adoption of ASC 606		Without Adoption of ASC 606
Product sales	$	122,799	$	(6,221)	$	116,578
Other revenue		3,002		(53)		2,949
Cost of goods sold		130,342		(6,274)		124,068
Gross margin	$	(4,541)	$	—	$	(4,541)