Lease Commitments (Tables)

12 Months Ended

Dec. 31, 2016

Lease Commitments [Abstract]

Schedule of Rent Expense [Table Text Block]

(dollars in thousands)		2016		2015		2014
Minimum annual rentals	$	38,632	$	34,794	$	35,183
Contingent rentals		431		452		409
Lease or sublease income		(7,212)		(7,069)		(6,881)
	$	31,851	$	28,177	$	28,711

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

(dollars in thousands)		Leases		Subleases
2017	$	43,512	$	(4,087)
2018		42,603		(3,716)
2019		35,710		(2,712)
2020		28,229		(2,461)
2021		22,031		(2,106)
Thereafter		80,060		(9,850)
	$	252,145	$	(24,932)