Inventories	6 Months Ended
Jun. 30, 2019
Inventory Disclosure [Abstract]
Inventories	Inventories Inventory costs are determined using the last-in, first-out ("LIFO") method for substantially all U.S. inventories. The current cost of the U.S. inventories under the FIFO method was $484,351 and $380,990 at June 30, 2019 and December 31, 2018, respectively. These FIFO values have been reduced by approximately $94,865 and $85,068 at June 30, 2019 and December 31, 2018, respectively, to arrive at the LIFO value reported on the Condensed Consolidated Balance Sheets. The remaining inventories have been valued under the FIFO method. All LIFO inventories are valued at the lower of cost or market. All other inventories are stated at the lower of cost or net realizable value.

Inventories

6 Months Ended

Jun. 30, 2019

Inventory costs are determined using the last-in, first-out ("LIFO") method for substantially all U.S. inventories. The current cost of the U.S. inventories under the FIFO method was $484,351 and $380,990 at June 30, 2019 and December 31, 2018, respectively. These FIFO values have been reduced by approximately $94,865 and $85,068 at June 30, 2019 and December 31, 2018, respectively, to arrive at the LIFO value reported on the Condensed Consolidated Balance Sheets. The remaining inventories have been valued under the FIFO method. All LIFO inventories are valued at the lower of cost or market. All other inventories are stated at the lower of cost or net realizable value.