Acquisitions (Tables)

12 Months Ended

Dec. 31, 2017

Business Combinations [Abstract]

Summary of Assets Acquired and Liabilities Assumed

The following table summarizes the assets acquired and liabilities assumed:

(Dollars in thousands)
Assets:
Current assets	$	5,165
Property, plant and equipment		5,716
Identifiable intangible assets		7,354
Goodwill		14,207
Total assets acquired	$	32,442
Liabilities:
Current liabilities	$	408
Deferred tax liability		3,079
Total liabilities assumed	$	3,487
Net assets acquired	$	28,955