Long-Term Related Party Payable Long-Term Related Party Payable - Payable Balance (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2019	Jun. 30, 2018
Related Party Payable Rollforward:
Related party payable, beginning balance	$ 27,593	$ 28,840	$ 98,925
Payment of related party payable	(3,019)	(6,707)	(13,376)
Fair value adjustments		2,114	(10,928)
Expiration of warrants			(2,167)
Disposition of the pediatric assets			(20,337)
Related party payable, ending balance	$ 24,247	$ 24,247	$ 52,117

Business Combination, Changes in Related Party Payable [Roll Forward]

No definition available.

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- Definition

The amount, measured at acquisition-date fair value, of all liabilities assumed that arise from contingencies and were recognized by the entity.

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- Definition

Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

+ References

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- Definition

Amount of addition (reduction) to the amount at which a liability could be incurred (settled) in a current transaction between willing parties.

+ References

No definition available.

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- Definition

The aggregate amount paid by the entity to reacquire the right to purchase equity shares at a predetermined price, usually issued together with corporate debt.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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