Business Segments (Details 4) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Total assets	$ 280,156	$ 244,434
United States [Member]
Segment Reporting Information [Line Items]
Total assets	194,285	188,596
United Kingdom [Member]
Segment Reporting Information [Line Items]
Total assets	56,481	40,163
Other Segments [Member]
Segment Reporting Information [Line Items]
Total assets	$ 29,390	$ 15,675