Derivative Instruments - Derivatives Designated as Hedging Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Interest Rate Contract
Carrying amount of the hedged liability - Subordinated bank note - 2025	$ 161,316		$ 161,316		$ 151,454
Cumulative amount of fair value hedging adjustments included in the carrying amount of the hedged liability - Subordinated bank note - 2025	12,520		12,520		$ 2,773
Gains and losses related to changes in the fair vale of the interest rate swap and hedged debt
Interest expense on borrowings	13,226	$ 16,078	39,718	$ 30,935
Summary of Net Investment Hedge Activity [Abstract]
Effect of net investment hedges on accumulated other comprehensive income	(5,954)	(2,881)	7,741	(5,931)
Derivatives designated as hedges | Interest expense - borrowings
Gains and losses related to changes in the fair vale of the interest rate swap and hedged debt
Gain (loss) of fair value hedge: Hedged item	(918)	(4,137)	(9,748)	(6,747)
Gain (loss) of fair value hedge: Derivative designated as a hedging instrument	929	4,181	9,865	6,743
Gain (loss) on interest rate contract recognized in interest expense on borrowings	11	44	117	(4)
Derivatives designated as hedges | Net investment hedges | Forward foreign exchange contracts
Summary of Net Investment Hedge Activity [Abstract]
Effect of net investment hedges on accumulated other comprehensive income	$ (5,954)	$ (2,881)	$ 7,741	$ (5,931)