Inventories (Tables)

12 Months Ended

Dec. 31, 2018

	December 31, 2018		December 31, 2017
	(In thousands)

Finished goods	$	226,802	$	209,800
Work-in-process		10,527		7,536
Raw materials		112,482		109,075
Subtotal		349,811		326,411
Unreturned customer inventories (1)		20,484		—
Total inventories	$	370,295	$	326,411

(1)

The adoption of ASU 2014-09 using the modified retrospective method resulted in the recording of unreturned customer inventories commencing on January 1, 2018, see Note 1, “Summary of Significant Accounting Policies” for additional information.