Fair Value (Schedule of Reconciliation of Fair Value of Recurring Level 3 Fair Value Measurements) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance		$ 6,720	$ 5,030	$ 6,570	$ 0
Additions to contingent consideration obligations		0	0	0	5,030
Total changes in fair value included in earnings		150	0	300	0
Ending balance		6,870	5,030	6,870	5,030
Unrealized losses still held	[1]	$ 150	$ 0	$ 300	$ 0

[1] Represents the unrealized losses recorded in earnings or other comprehensive income (loss) during the period for liabilities classified as Level 3 that are still held at the end of the period.