Segment and Geographic Information (Tables)

9 Months Ended

Sep. 30, 2017

Segment Reporting [Abstract]

Reconciliation of Revenue from Segments to Consolidated

The geographic segment information provided below is classified based on the major geographic regions in which the Company operates. Long-lived assets are comprised of the Company’s noncurrent assets.

	Three Months Ended September 30,								Nine Months Ended September 30,
	2017				2016				2017				2016
	($ in thousands)
Net revenues:
United States	$	15,460	91.6	%	$	35,662	94.8	%	$	55,062	92.0	%	$	133,273	93.3	%
Europe	1,208		7.2	%	1,726		4.6	%	4,355		7.3	%	7,544		5.3	%
Rest of world	203		1.2	%	211		0.6	%	412		0.7	%	1,819		1.4	%
Total net revenues	$	16,871	100	%	$	37,599	100.0	%	$	59,829	100.0	%	$	142,636	100.0	%

Reconciliation of Assets from Segment to Consolidated

	September 30, 2017				December 31, 2016
	($ in thousands)
Long-lived assets:
United States	$	708,309	99.9	%	$	1,047,098	99.6	%
Europe	833		0.1	%	4,160		0.4	%
Total long-lived assets	$	709,142	100.0	%	$	1,051,258	100.0	%