Long-Term Related Party Payable Long-Term Related Party Payable - Payable Balance (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Related Party Payable Rollforward:
Related party payable, beginning balance	$ 28,840	$ 98,925
Payment of related party payable	(3,688)	(7,017)
Fair value adjustments	2,441	3,363
Expiration of warrants		(2,167)
Disposition of the pediatric assets		20,337
Related party payable, ending balance	$ 27,593	$ 72,767

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.

+ References

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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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-Publisher FASB
-Name Accounting Standards Codification
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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.

+ References

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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.

+ References

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