Inventories	3 Months Ended
Mar. 31, 2017
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 first-in, first-out (“FIFO”) method was $495,088 and $409,034 at March 31, 2017 and December 31, 2016, respectively. These FIFO values have been reduced by approximately $99,551 and $85,113 at March 31, 2017 and December 31, 2016, respectively, to arrive at the LIFO value reported on the Condensed Consolidated Balance Sheets. The remaining inventories have been valued under the FIFO or average cost methods. All LIFO inventories are stated at the lower of cost or market. All other inventories are stated at the lower of cost or net realizable value as a result of adopting ASU 2015-11, "Simplifying the Measurement of Inventory."

Inventories

3 Months Ended

Mar. 31, 2017

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 first-in, first-out (“FIFO”) method was $495,088 and $409,034 at March 31, 2017 and December 31, 2016, respectively. These FIFO values have been reduced by approximately $99,551 and $85,113 at March 31, 2017 and December 31, 2016, respectively, to arrive at the LIFO value reported on the Condensed Consolidated Balance Sheets. The remaining inventories have been valued under the FIFO or average cost methods. All LIFO inventories are stated at the lower of cost or market. All other inventories are stated at the lower of cost or net realizable value as a result of adopting ASU 2015-11, "Simplifying the Measurement of Inventory."