Debt (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Aggregate mandatory payments due by year

As of December 31, 2016, the aggregate mandatory principal payments were as follows:

Year	Payments Due
2017		$4.1	million
2018		$4.8	million
2019		$5.5	million
2020		$226.8	million