Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases

Future minimum annual rental commitments under non-cancelable leases at December 31, 2016 are as follows:

	(In thousands)
2017	$	5,530
2018	4,935
2019	4,986
2020	3,735
	$	19,186

Schedule of Minimum Volume Commitments

The estimable future commitments under these volume commitment agreements as of December 31, 2016 are as follows:

	(In thousands)
2017	$	33,103
2018	57,654
2019	63,505
2020	61,653
2021	62,092
Thereafter	194,229
	$	472,236