Other Income (Expense), Net Other Income (Expense), Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Other Nonoperating Income (Expense), Net - Other	$ 8,233	$ 3,286
kaleo [Member]
Unrealized Gain (Loss) on Investments - kaleo	$ 8,200	$ 3,300