Intangible Assets, Net (Tables)

6 Months Ended

Jun. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Intangible Assets, Net

Intangible assets, net are summarized as follows:

	June 30, 2018			December 31, 2017
($ in thousands)
Definite-lived intangible assets:
Investment contracts	$	425,747		$	425,747
Accumulated amortization	(177,369		)	(167,309		)
Definite-lived intangible assets, net	248,378			258,438
Indefinite-lived intangible assets	43,516			43,516
Total intangible assets, net	$	291,894		$	301,954

Schedule of Activity in Intangible Assets, Net

Activity in intangible assets, net is as follows:

	Six Months Ended June 30,
	2018			2017
($ in thousands)
Intangible assets, net
Balance, beginning of period	$	301,954		$	38,427
Additions (1)	—			275,700
Amortization	(10,060		)	(2,046		)
Balance, end of period	$	291,894		$	312,081

⁽¹⁾ See Note 4 for details on the acquired intangible assets related to the Acquisition.

Schedule of Estimated Amortization Expense of Intangible Assets Succeeding Years

Estimated amortization expense of intangible assets for the remainder of fiscal year 2018 and succeeding fiscal years is as follows:

($ in thousands)
Fiscal Year	Amount
2018	$	10,049
2019	20,043
2020	19,878
2021	19,867
2022	19,742
2023 and thereafter	158,799
	$	248,378