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Segment and Geographic Information - Schedule of Net Sales to External Customers and Location of Net Plant, Equipment and Timberlands (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Sep. 30, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 390,865 | $ 405,301 | $ 406,413 | $ 402,218 | $ 412,852 | $ 410,803 | $ 417,469 | $ 419,960 | $ 1,604,797 | $ 1,661,084 | $ 1,802,415
Plant, Equipment and Timberlands – Net | 775,898 |  |  |  | 698,864 |  |  |  | 775,898 | 698,864 | 697,608
United States [Member] |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 918,567 | 959,730 | 980,933
Plant, Equipment and Timberlands – Net | 391,977 |  |  |  | 287,447 |  |  |  | 391,977 | 287,447 | 256,251
Germany [Member] |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 427,520 | 444,009 | 529,003
Plant, Equipment and Timberlands – Net | 220,380 |  |  |  | 232,340 |  |  |  | 220,380 | 232,340 | 257,311
United Kingdom [Member] |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 78,759 | 86,442 | 103,219
Plant, Equipment and Timberlands – Net | 51,903 |  |  |  | 62,931 |  |  |  | 51,903 | 62,931 | 62,617
Canada [Member] |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 115,902 | 118,568 | 129,401
Plant, Equipment and Timberlands – Net | 79,727 |  |  |  | 81,201 |  |  |  | 79,727 | 81,201 | 82,774
Other [Member] |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 64,049 | 52,335 | 59,859
Plant, Equipment and Timberlands – Net | $ 31,911 |  |  |  | $ 34,945 |  |  |  | $ 31,911 | $ 34,945 | $ 38,655

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