Goodwill and Identifiable Intangible Assets, Net (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Changes in the carrying amount of goodwill
Balance at the beginning of year	$ 114,588	$ 114,588	$ 114,588
Balance at the end of period	$ 114,588	$ 114,588	$ 114,588