Acquisitions (Schedule Of Allocation Of Total Consideration Transferred) (Details) - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015	[2]
Business Acquisition [Line Items]
Goodwill	[1]	$ 15,794	$ 2,905
Challenger And Hybrid [Member]
Business Acquisition [Line Items]
Cash		1,186
Accounts receivable		5,924
Property and equipment		144
Goodwill		12,889
Intangible assets		9,912
Other assets		276
Total assets		30,331
Accounts payable		4,479
Deferred tax liability		2,462
Other liabilities		605
Total liabilities		7,546
Purchase price		$ 22,785

[1] Amounts for the years ended December 31, 2015 and 2014 have been restated for immaterial corrections of identified errors relating to prepaid loan fees (see Note 2 (b) "Correction of Immaterial Errors").

[2] Amounts for the year ended December 31, 2015 have been restated for immaterial corrections of identified errors relating to prepaid loan fees (see Note 2 (b) "Correction of Immaterial Errors").