Summary of Significant Accounting Policies (Anti-dilutive shares) (Details) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted Average Number of Shares Outstanding, Basic	14,910	14,713	14,860	14,691
Weighted Average Number Diluted Shares Outstanding Adjustment	0	0	0	463
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2,112	1,896	2,112	1,170
Weighted Average Number of Shares Outstanding, Diluted	14,910	14,713	14,860	15,154
Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	35	50	35	50
Stock-settled stock appreciation rights (SARs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	1,276	901	1,276	711
Restricted stock/units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	613	665	613	129
Performance contingent SARs [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	188	280	188	280