Principles Of Preparation (Supplemental Cash Flow Disclosures) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2014	Mar. 31, 2013
Supplemental Cash Flow Information [Abstract]
Interest on long-term debt and borrowing under the revolving credit facility	$ 10,174	$ 9,893
Income tax refund, net	(767)	(3,088)
Grants of restricted shares of common stock	1,197	929
Issuance of performance shares	$ 0	$ 849

Value of stock related to performance shares vested during the period.

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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The amount of cash paid for interest during the period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

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Aggregate value of stock related to Restricted Stock Awards issued during the period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Number 210

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