Fair Value of Financial Assets and Financial Liabilities (Level 3 Reconciliation) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Ending balance	$ 904
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Ending balance	(1,012)
Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	(897)	(1,521)
Included in earnings	0	0
Included in other comprehensive income	(115)	624
Purchases:	0	0
Sales:	0	0
Issuances:	0	0
Settlements:	0	0
Transfers in/(out) of Level 3	0	0
Ending balance	(1,012)	(897)
The amount of total gains or losses for the period included in earnings attributable to the change in unrealized gains or losses relating to assets and liabilities still held as of March 31, 2014:	0	0
Fair Value, Measurements, Recurring [Member] | Available-for-sale Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance:	875	829
Included in earnings	0	0
Included in other comprehensive income	29	46
Purchases:	0	0
Sales:	0	0
Issuances:	0	0
Settlements:	0	0
Transfers in/(out) of Level 3	0	0
Ending balance	904	875
The amount of total gains or losses for the period included in earnings attributable to the change in unrealized gains or losses relating to assets and liabilities still held as of March 31, 2014:	$ 0	$ 0