Allowance for expected credit losses (Notes)

3 Months Ended

Mar. 31, 2020

Credit Loss [Abstract]

Allowance for expected credit losses

Premiums Receivable

The following table presents the balances of premiums receivable, net of the allowance for expected credit losses, at January 1, 2020 and March 31, 2020 and changes in the allowance for expected credit losses for the three months ended March 31, 2020.

	Premiums Receivable, Net of Allowance		Allowance for Expected Credit Losses
	($ in thousands)
Balance at beginning of period	$	273,657	$	—
Cumulative effect of adoption of updated accounting guidance for credit losses at January 1, 2020			156
Current period change for expected credit losses			—
Write-offs charged against the allowance			—
Balance at end of period	$	281,541	$	156

Reinsurance Recoverables

The following table presents the balances of reinsurance recoverables, net of the allowance for expected credit losses, at January 1, 2020 and March 31, 2020, and changes in the allowance for expected credit losses for the three months ended March 31, 2020.

	Reinsurance Recoverables, Net of Allowance		Allowance for Expected Credit Losses
	($ in thousands)
Balance at beginning of period	$	170,974	$	—
Cumulative effect of adoption of updated accounting guidance for credit losses at January 1, 2020 (1)			297
Current period change for expected credit losses			—
Write-offs charged against the allowance			—
Balance at end of period	$	197,458	$	297