Acquisition (Schedule Of Purchase Price Allocation) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Business Combinations [Line Items]
Purchase price, net of cash acquired		$ (10,750)	$ 0
Goodwill	$ 191,616	191,616		$ 199,290
Business Acquisition Pro Forma Information [Abstract]
Net sales			1,989,134
Net income			$ 57,089
Secure [Member]
Business Combinations [Line Items]
Purchase price paid		219,754
Cash acquired		(922)
Purchase price, net of cash acquired	(10,800)	218,832
Integration and Acquisition-related costs for 2016		132
Cash	922	922
Accounts receivable	12,521	12,521
Inventories	13,484	13,484
Other current assets	1,569	1,569
Property, plant and equipment	2,048	2,048
Other assets	97	97
Trade names and trademarks intangible	7,800	7,800
Technology licenses intangible	15,500	15,500
Customer relationships intangible	67,100	67,100
Current liabilities	(16,936)	(16,936)
Long-term debt	(24)	(24)
Other long-term liabilities	(800)	(800)
Deferred income taxes	(29,173)	(29,173)
Total identifiable net assets	74,108	74,108
Goodwill	145,646	145,646
Net assets acquired	$ 219,754	$ 219,754