Fair Value Measurement - Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands		Jun. 30, 2016	Dec. 31, 2015
Recurring Measurements
Assets and liabilities that are measured at fair value on a recurring basis
Cash equivalents		$ 5,000	$ 5,000
Level 1 | Recurring Measurements
Assets and liabilities that are measured at fair value on a recurring basis
Cash equivalents		5,000	5,000
Level 2 | Recurring Measurements
Assets and liabilities that are measured at fair value on a recurring basis
Cash equivalents		0	0
Level 3 | Recurring Measurements
Assets and liabilities that are measured at fair value on a recurring basis
Cash equivalents		0	0
Interest rate swaps
Assets and liabilities that are measured at fair value on a recurring basis
Interest rate swap	[1]	(235)	(299)
Interest rate swaps | Recurring Measurements
Assets and liabilities that are measured at fair value on a recurring basis
Interest rate swap		(235)	(299)
Interest rate swaps | Level 1 | Recurring Measurements
Assets and liabilities that are measured at fair value on a recurring basis
Interest rate swap		0	0
Interest rate swaps | Level 2 | Recurring Measurements
Assets and liabilities that are measured at fair value on a recurring basis
Interest rate swap		(235)	(299)
Interest rate swaps | Level 3 | Recurring Measurements
Assets and liabilities that are measured at fair value on a recurring basis
Interest rate swap		$ 0	$ 0

[1] (1) Balance recorded as other liabilities in Condensed Consolidated Balance Sheets