Organization, Proposed Merger And Bases Of Presentation (Impact Of Tax Correction To The Consolidated Statement Of Cash Flows) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Net income	$ 2,601	$ 3,371
Unrealized foreign currency gains, net	(3,429)	(3,346)
Deferred income taxes	406	(221)
Income taxes payable	(7,682)	(692)
Net cash provided by operating activities	52,248	69,644
As Adjusted [Member]
Net income		3,629	[1]
Unrealized foreign currency gains, net		(3,459)	[1]
Deferred income taxes		(142)	[1]
Income taxes payable		(916)	[1]
Net cash provided by operating activities		69,644	[1]
As Corrected [Member]
Net income		3,371
Unrealized foreign currency gains, net		(3,346)
Deferred income taxes		(221)
Income taxes payable		(692)
Net cash provided by operating activities		69,644
Increase/(Decrease) [Member]
Net income		(258)
Unrealized foreign currency gains, net		113
Deferred income taxes		(79)
Income taxes payable		$ 224

[1] Refer to the above section "Impact of Change in Consolidated Statement of Cash Flows Presentation to Prior Periods".