Annual report pursuant to Section 13 and 15(d)

Quarterly Financial Information (Unaudited) (Details)

v3.7.0.1
Quarterly Financial Information (Unaudited) (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]                      
Net Revenue $ 140,683 $ 142,765 $ 143,656 $ 143,268 $ 141,551 $ 141,846 $ 141,543 $ 138,416 $ 570,372 $ 563,356 $ 539,449
Operating income 21,101 18,486 15,258 12,804 5,655 12,420 21,783 23,867 $ 67,649 $ 63,725 $ 93,490
Net loss $ (16,586) $ (23,002) $ (16,509) $ (20,210) $ (26,713) $ (21,414) $ (15,987) $ (8,334)