Intangible Assets (Schedule of Amortization and Future Amortization Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortization expense on intangible assets	$ 6,040	$ 4,154	$ 12,032	$ 8,191
Estimated amortization expense, remainder of 2016	12,285		12,285
Estimated amortization expense, 2017	23,425		23,425
Estimated amortization expense, 2018	21,309		21,309
Estimated amortization expense, 2019	16,982		16,982
Estimated amortization expense, 2020	$ 16,081		$ 16,081