Income taxes (Tables)

9 Months Ended

Sep. 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	$	922
2017		10,658
2018		13,438
2019		13,569
2020		13,910
Thereafter		221,575
Total	$	274,072