Income Taxes (Tables)

3 Months Ended

Mar. 31, 2017

Income Taxes

Schedule of reconciliation of unrecognized tax benefits

	Three Months Ended March 31,
	2017						2016
			Interest						Interest
			and						and
(dollars in thousands)	Tax		Penalties		Total		Tax		Penalties		Total
Balance at January 1,	$	127,085	$	9,965	$	137,050	$	5,903	$	2,935	$	8,838
Additions for current year tax positions		199		—		199		117		—		117
Additions for prior years' tax positions:
Accrual of interest and penalties		—		71		71		—		32		32
Reductions for prior years' tax positions:
Expiration of statute of limitations		(127)		(51)		(178)		(176)		(72)		(248)
Balance at March 31,	$	127,157	$	9,985	$	137,142	$	5,844	$	2,895	$	8,739