Supplemental Disclosures of Cash Flow Information (Unaudited) (Details) - Disclosure of Supplemental Cash Flow Information (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Disclosure of Supplemental Cash Flow Information [Abstract]
Interest paid	$ 4,348	$ 4,055
Income taxes paid	$ 3,714	$ 7,532