Consolidated and Combined Balance Sheets (Nonprinting) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 847	$ 746
Accumulated depreciation	$ 268,513	$ 256,603
Common stock, par value ( in USD per share)	$ 0.01
Common stock, authorized (in shares)	100,000,000
Common stock, issued (in shares)	24,407,533
Common stock, outstanding (in shares)	24,407,533
Preferred stock, par value (in USD per share)	$ 0.01
Preferred stock, authorized (in shares)	10,000,000
Preferred stock, issued (in shares)	0
Preferred stock, outstanding (in shares)	0