Acquisitions, Goodwill And Other Intangible Assets (Summary of Estimated Amortization Expense) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets
Amortization expense	$ 16,055	$ 12,704	$ 10,008
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity
2016	15,709
2017	14,192
2018	12,724
2019	11,409
2020	8,997
Cost of Sales
Finite-Lived Intangible Assets
Amortization expense	6,017	5,092	3,610
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity
2016	6,186
2017	5,732
2018	4,911
2019	4,235
2020	3,014
Selling, General and Administrative Expenses
Finite-Lived Intangible Assets
Amortization expense	10,038	$ 7,612	$ 6,398
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity
2016	9,523
2017	8,460
2018	7,813
2019	7,174
2020	$ 5,983