Pension and Other Postretirement Benefits - Narrative (Details)	12 Months Ended
	Dec. 31, 2016 USD ($) person	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($) person
Defined Benefit Plan Disclosure [Line Items]
Aggregate contributions to qualified and non-qualified pension trusts and payments of pension benefits for unfunded pension plans	$ 14,000,000
Maximum
Defined Benefit Plan Disclosure [Line Items]
Period for historical returns	15 years
Minimum
Defined Benefit Plan Disclosure [Line Items]
Period for historical returns	10 years
FiberMark | Maximum
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost	$ 100,000
Matching contribution (as a percent)		5.00%
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Number of eligible participants who accepted settlement | person	265		425
Cash paid for lump-sum payments	$ 8,100,000		$ 14,000,000
Settlement loss recognized	800,000	$ 0	3,500,000
Defined benefit plan, assets for plan benefits, Total	1,600,000
Defined benefit plan investments classified as prepaid and other current assets	600,000
Defined benefit plan investments classified as other assets	1,000,000
Net periodic benefit cost	9,500,000	$ (8,400,000)	$ 11,800,000
Estimated net actuarial loss	7,300,000
Estimated prior service cost	$ 200,000
Expected long-term return on plan assets (as a percent)	6.20%	6.50%	6.50%
Amount of plan assets invested in the entity's securities		$ 0	$ 0
Pension Benefits | Minimum
Defined Benefit Plan Disclosure [Line Items]
Expected long-term return on plan assets (as a percent)	6.20%
Postretirement Benefits Other than Pensions
Defined Benefit Plan Disclosure [Line Items]
Settlement loss recognized	$ 0	0	0
Net periodic benefit cost	$ 3,300,000	$ 3,400,000	$ 3,800,000
Health care cost trend rate assumed for next fiscal year	7.00%	7.30%
Ultimate health care cost trend rate	4.50%
Estimated net actuarial loss	$ 200,000
Estimated prior service cost	$ (200,000)
Expected long-term return on plan assets (as a percent)	0.00%	0.00%	0.00%
Defined contribution retirement plans
Defined Benefit Plan Disclosure [Line Items]
Cost recognized	$ 2,700,000	$ 2,500,000	$ 1,900,000
Supplemental retirement contribution plan
Defined Benefit Plan Disclosure [Line Items]
Cost recognized	400,000	200,000	100,000
Unfunded obligation	1,300,000	900,000
Voluntary contribution investment plans
Defined Benefit Plan Disclosure [Line Items]
Cost recognized	$ 3,100,000	$ 2,700,000	$ 1,900,000
Equity securities
Defined Benefit Plan Disclosure [Line Items]
Asset allocation (as a percent)	43.00%
Equity securities | Maximum
Defined Benefit Plan Disclosure [Line Items]
Expected long-term return on plan assets (as a percent)	10.00%
Equity securities | Minimum
Defined Benefit Plan Disclosure [Line Items]
Expected long-term return on plan assets (as a percent)	8.00%
Equity securities | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Asset allocation (as a percent)	43.00%
U.S. and Non-U.S. Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Asset allocation (as a percent)	57.00%
U.S. and Non-U.S. Fixed Income Securities | Maximum
Defined Benefit Plan Disclosure [Line Items]
Expected long-term return on plan assets (as a percent)	6.00%
U.S. and Non-U.S. Fixed Income Securities | Minimum
Defined Benefit Plan Disclosure [Line Items]
Expected long-term return on plan assets (as a percent)	4.00%
U.S. and Non-U.S. Fixed Income Securities | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Asset allocation (as a percent)	57.00%