Financing Arrangements (Notes Payable) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Notes Payable, Current and Noncurrent [Abstract]
Total current portion of notes payable	$ 12,375	$ 14,835
Total long-term portion of notes payable		13,443
Current portion notes payable, 8.64%, due August 1, 2014 [Member]
Notes Payable, Current and Noncurrent [Abstract]
Total current portion of notes payable	9,025	10,792
Fixed rate of interest	8.64%
Maturity date of term loan	Aug. 01, 2014
Current portion notes payable, 8.9012%, due August 1, 2014 [Member]
Notes Payable, Current and Noncurrent [Abstract]
Total current portion of notes payable	3,350	4,043
Fixed rate of interest	8.9012%
Maturity date of term loan	Aug. 01, 2014
Long-term portion notes payable, 8.64%, due August 1, 2014 [Member]
Notes Payable, Current and Noncurrent [Abstract]
Total long-term portion of notes payable	0	9,837
Fixed rate of interest	8.64%
Maturity date of term loan	Aug. 01, 2014
Long-term portion notes payable, 8.9012%, due August 1, 2014 [Member]
Notes Payable, Current and Noncurrent [Abstract]
Total long-term portion of notes payable	$ 0	$ 3,606
Fixed rate of interest	8.9012%
Maturity date of term loan	Aug. 01, 2014