Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
Accumulated Other Comprehensive Income
Balance at the beginning of the period	$ (381)
Other comprehensive income before reclassifications	609
Net current period other comprehensive income	609
Balance at the end of the period	228
Cash flow hedge
Accumulated Other Comprehensive Income
Balance at the beginning of the period	(476)
Other comprehensive income before reclassifications	849
Net current period other comprehensive income	849
Balance at the end of the period	373
Foreign Currency
Accumulated Other Comprehensive Income
Balance at the beginning of the period	95
Other comprehensive income before reclassifications	(240)
Net current period other comprehensive income	(240)
Balance at the end of the period	$ (145)