Commitments and Contingencies - Purchase Commitments (Details) $ in Thousands	Mar. 31, 2016 USD ($)
Purchase commitments entered in May 2015
Future commitments
Advance Deposits	$ 0
Total Minimum Commitment	82,800
Remaining Deposit	16,651
Remaining Commitments, Net of Deposit	13,374
Purchase commitments entered in September 2015
Future commitments
Advance Deposits	0
Total Minimum Commitment	46,865
Remaining Deposit	0
Remaining Commitments, Net of Deposit	28,060
Purchase commitments entered in September 2015 Two
Future commitments
Advance Deposits	0
Total Minimum Commitment	7,200
Remaining Deposit	0
Remaining Commitments, Net of Deposit	5,711
Purchase commitments entered in September 2015 Three
Future commitments
Advance Deposits	0
Total Minimum Commitment	55,200
Remaining Deposit	0
Remaining Commitments, Net of Deposit	$ 55,200