Short-term and Long-term Debt - Components of Long-term Debt (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Long-term debt consists of:
Long-term debt	$ 84,718	$ 4,693
Less current portion	(20,441)	(234)
Long-term debt, less current portion	64,277	4,459
Long-term debt secured by leased building and land	4,518
Note payable to a bank
Long-term debt consists of:
Long-term debt	4,518	4,693
Note Payable to DMB TMV LLC
Long-term debt consists of:
Long-term debt	60,000	0
Revolving line of credit
Long-term debt consists of:
Long-term debt	$ 20,200	$ 0