Other - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	Apr. 30, 2016	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Jun. 30, 2016	Mar. 31, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring expenses		$ (45)	$ 1,132	$ 4,933	$ 1,132
Shares repurchased (in shares)			0.9		2.1
Shares repurchased, price per share (in dollars per share)			$ 15.80		$ 16.16
Shares repurchased, value			$ 15,000		$ 33,724
HYFN Inc [Member]
Restructuring Cost and Reserve [Line Items]
Purchase price	$ 35,000
One-time compensation expense related to the transaction	7,000
Total cash outflow	$ 42,000
Noncontrolling interest, ownership percentage by parent (percentage)						100.00%	50.10%
Severance Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses				2,163
Payments for restructuring				3,404
Asset Impairment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses				799
Digital Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Expected savings related to restructuring				14,700
Cumulative expense incurred		3,900		3,900
Restructuring expenses				2,323
Digital Restructuring Plan [Member] | Severance Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses				1,780
Payments for restructuring				2,997
Digital Restructuring Plan [Member] | Asset Impairment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses				501
WAGT Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses				2,610
Payments for restructuring		$ 700
WAGT Restructuring [Member] | Severance Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses				383
Payments for restructuring				407
WAGT Restructuring [Member] | Asset Impairment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses				$ 298