Other Income and Other Operating Expenses - Textual (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Other Income and Expenses [Abstract]
Other income	$ 43,821	$ 4,942	$ 52,083	$ 14,151
Gain on sale of Visa, Inc. class B common stock			$ 42,860