Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Change in minimum pension liability, net of tax benefit (expense)	$ 34	$ (2)	$ (82)	$ (16)
Change in fair value of derivative instruments, net of tax benefit (expense)	$ 223	$ (104)	$ (33)	$ 213