Goodwill and Other Intangible Assets (Narrative) (Details) (USD $)	3 Months Ended					12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012
Amortization of Intangible Assets
Amortization of intangible assets	$ 3,081,000	$ 3,731,000	$ 2,837,000	$ 3,313,000	$ 3,717,000	$ 13,598,000	$ 20,946,000
Estimated amortization of intangible assets, remainder of 2014	9,000,000
Estimated amortization of intangible assets, 2015	9,000,000
Estimated amortization of intangible assets, 2016	7,000,000
Estimated amortization of intangible assets, 2017	4,000,000
Estimated amortization of intangible assets, 2018	4,000,000
Estimated amortization of intangible assets, 2019	$ 3,000,000