Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2017

Supplemental Cash Flow Information

The accompanying cash flows are included in cash flows from operating activities in the Statements of Cash Flows along with the activities resulting from management of the proceeds, which for the years ended December 31 are as follows:

($ in thousands)	2017			2016			2015
Net change in proceeds managed
Net change in short-term investments	$	1,864		$	38,737		$	1,427
Operating cash flow provided	$	1,864		$	38,737		$	1,427
Net change in liabilities
Liabilities for collateral, beginning of year	$	(60,931	)	$	(99,668	)	$	(101,095	)
Liabilities for collateral, end of year		(59,067	)		(60,931	)		(99,668	)
Operating cash flow used	$	(1,864	)	$	(38,737	)	$	(1,427	)