Quarterly report pursuant to Section 13 or 15(d)

Segment Information (Adjusted EBITDA To Operating Income (Loss) And Consolidated Net Income) (Details)

v3.7.0.1
Segment Information (Adjusted EBITDA To Operating Income (Loss) And Consolidated Net Income) (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Segment Reporting Information [Line Items]      
Net income $ 21,248 $ 28,585 $ 118,708
Income tax provision (13,467) (17,097)  
Income before income taxes 34,715 45,682  
Total other expense, net 3,864 4,147  
Operating income 38,579 49,829  
Stock-based compensation expense 4,704 5,376  
Depreciation and amortization (10,886) (10,525)  
Gain (loss) on disposition of fixed assets (49) 2  
Adjusted EBITDA 54,120 65,732  
HSN [Member]      
Segment Reporting Information [Line Items]      
Operating income 37,512 49,645  
Stock-based compensation expense 3,392 4,039  
Depreciation and amortization (7,707) (7,003)  
Gain (loss) on disposition of fixed assets (49) 3  
Adjusted EBITDA 48,562 60,690  
Cornerstone [Member]      
Segment Reporting Information [Line Items]      
Operating income 1,067 184  
Stock-based compensation expense 1,312 1,337  
Depreciation and amortization (3,179) (3,522)  
Gain (loss) on disposition of fixed assets 0 (1)  
Adjusted EBITDA $ 5,558 $ 5,042