Income taxes (Tables)

6 Months Ended

Jun. 30, 2016

Income Tax Disclosure [Abstract]

Schedule of Future Payments Under Tax Benefit Arrangements

Projected future payments under the tax benefit arrangements are as follows:

	Amount
Remainder of 2016	$	921
2017		9,240
2018		10,646
2019		10,749
2020		11,030
Thereafter		169,750
Total	$	212,336