Borrowings (Schedule Of Long-Term Borrowings) (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended			12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended
	Jun. 28, 2007	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 4.00% Borrowings Due December 7, 2016 [Member]	Dec. 31, 2012 4.00% Borrowings Due December 7, 2016 [Member]	Dec. 31, 2013 4.60% Borrowings Due June 21, 2017 [Member]	Dec. 31, 2012 4.60% Borrowings Due June 21, 2017 [Member]	Dec. 31, 2013 3.97% Borrowings Due December 7, 2017 [Member]	Dec. 31, 2012 3.97% Borrowings Due December 7, 2017 [Member]	Dec. 31, 2013 3.66% Borrowings Due December 26, 2017 [Member]	Dec. 31, 2012 3.66% Borrowings Due December 26, 2017 [Member]	Dec. 31, 2013 3.79% Borrowings Due December 26, 2017 [Member]	Dec. 31, 2012 3.79% Borrowings Due December 26, 2017 [Member]	Dec. 31, 2013 1.98% Borrowings Due January 1, 2018 [Member]	Dec. 31, 2013 1.65% Borrowings Due July 17, 2018 [Member]	Dec. 31, 2013 1.83% Borrowings Due September 19, 2018 [Member]
Debt Instrument [Line Items]
Maturity Date	Sep. 15, 2037			Dec. 07, 2016		Jun. 21, 2017		Dec. 07, 2017		Dec. 26, 2017		Dec. 26, 2017		Jan. 01, 2018	Jul. 17, 2018	Sep. 19, 2018
Interest Rate				4.00%		4.60%		3.97%		3.66%		3.79%		1.98%	1.65%	1.83%
Long-term borrowings		$ 41,000	$ 26,000	$ 5,000	$ 5,000	$ 6,000	$ 6,000	$ 5,000	$ 5,000	$ 5,000	$ 5,000	$ 5,000	$ 5,000	$ 5,000	$ 5,000	$ 5,000