Comprehensive Income and Accumulated Other Comprehensive Income (Tables)

12 Months Ended

Dec. 31, 2020

Equity [Abstract]

Schedule of Changes in Accumulated Other Comprehensive Income (AOCI)

The following table illustrates the changes in the balance of each component of accumulated other comprehensive income (loss) for each period presented in the financial statements.

	Year Ended December 31,
	2020			2019			2018
	(in thousands)
Balance, beginning of period	$	12,211		$	(832	)	$	3,612
Impact of adoption of ASU 2016-01		—			—			(615	)
Impact of adoption of ASU 2018-02		—			—			414
Adjusted beginning balance		12,211			(832	)		3,411
Other comprehensive income (loss) before    reclassification		9,538			12,379			(4,551	)
Amounts reclassified from accumulated other    comprehensive income (loss)		(730	)		664			308
Net current period other comprehensive income (loss)		8,808			13,043			(4,243	)
Balance, end of period	$	21,019		$	12,211		$	(832	)

Reclassification Out of Accumulated Other Comprehensive Income

The effects of reclassifications out of accumulated other comprehensive income by the respective line items of net income are presented in the following table.

Component of Accumulated Other Comprehensive Income (Loss)	Year Ended December 31,									Affected line item in the statement of income
	2020			2019			2018
	(in thousands)
Unrealized gains (losses) on available-for-    sale securities	$	925		$	(841	)	$	(390	)	Net realized gains (losses) on    investments
		925			(841	)		(390	)	Income before income taxes
		(195	)		177			82		Income tax expense
	$	730		$	(664	)	$	(308	)	Net income

Other Comprehensive Income

	Pre-Tax Amount			Tax Expense (Benefit)			Net-of-Tax Amount
	(in thousands)
December 31, 2020
Unrealized gain on securities:
Unrealized gain on available-for-sale securities	$	12,074		$	2,536		$	9,538
Reclassification adjustment for gains realized     in net income		(925	)		(195	)		(730	)
Net unrealized gain		11,149			2,341			8,808
Other comprehensive income	$	11,149		$	2,341		$	8,808
December 31, 2019
Unrealized gain on securities:
Unrealized gain on available-for-sale securities	$	15,670		$	3,291		$	12,379
Reclassification adjustment for losses realized     in net income		841			177			664
Net unrealized gain		16,511			3,468			13,043
Other comprehensive income	$	16,511		$	3,468		$	13,043
December 31, 2018
Unrealized loss on securities:
Unrealized loss on available-for-sale securities	$	(5,760	)	$	(1,209	)	$	(4,551	)
Reclassification adjustment for gains realized     in net income		390			82			308
Net unrealized loss		(5,370	)		(1,127	)		(4,243	)
Other comprehensive loss	$	(5,370	)	$	(1,127	)	$	(4,243	)