Schedule II - Valuation and Qualifying Accounts (Details) - Allowance for Doubtful Accounts - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year		$ 10,424	$ 11,890	$ 11,472
Costs and Expenses		2,853	2,918	3,533
Additions Charged To Other	[1]	0	0	12
Deductions	[2]	(2,102)	(4,384)	(3,127)
Balance at End of Year		$ 11,175	$ 10,424	$ 11,890

[1] Amount principally relates to business acquisitions and divestitures, and the effect of exchange rate changes.

[2] Deductions primarily represent uncollectible balances of accounts receivable written off, net of recoveries.