Commitments and Contingencies Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Contractual Obligation, Fiscal Year Maturity Schedule [Table Text Block]

The following table summarizes our principal contractual commitments, excluding open orders for purchases that support normal operations, as of June 30, 2017 (in thousands):

	Payments Due By Period
	Total		Remainder of 2017		2018		2019		2020		2021		Thereafter
Long-term debt obligations	$	75,000	$	—	$	—	$	—	$	75,000	$	—	$	—
Interest payments on long-term debt obligations	8,181		1,515		3,176		3,193		297		—		—
Operating lease obligations	34,258		4,300		8,284		5,591		3,316		3,216		9,551
Purchase obligations(1)	101,854		9,397		4,477		14,005		34,757		39,218		—
Total contractual obligations	$	219,293	$	15,212	$	15,937	$	22,789	$	113,370	$	42,434	$	9,551

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⁽¹⁾ Purchase obligations includes agreements to purchase goods that are enforceable and legally binding. These amounts are not accrued as of June 30, 2017. We are committed to make potential future milestone payments to third parties under distribution agreements. Payments under these agreements are contingent upon achievement of certain developmental, regulatory and/or commercial milestones and are not included in the table above.