SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS (Details) (Allowance for Doubtful Accounts [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	$ 3,837		$ 3,009		$ 2,440
Additions Charged to Costs, Provisions and Expenses	586		1,011		877
Deductions	(2,708)	[1]	(183)	[1]	(308)	[1]
Balance at End of Period	$ 1,715		$ 3,837		$ 3,009

[1] Includes impact of translation of foreign currencies.