Summary of Significant Accounting Policies - Effect of the Adoption of ASU 2014-09 and 2017-07 (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	$ 1,840,021	$ 1,849,710	$ 1,843,498	$ 1,795,434	$ 1,929,480	$ 1,894,066	$ 1,951,230	$ 1,980,507	$ 7,328,663	$ 7,755,283	$ 7,795,025
Cost of sales									5,888,931	6,100,005	5,976,958
Gross profit	$ 336,158	$ 350,341	$ 379,480	$ 373,753	$ 383,394	$ 390,597	$ 432,784	$ 448,503	1,439,732	1,655,278	1,818,067
Effect on selling and distribution									1,327,922	1,403,178	1,346,417
Effect on general and administrative									301,355	277,659	307,793
Effect on total operating costs and expenses									1,839,416	1,970,471	1,730,501
Effect on operating income									(399,684)	(315,193)	87,566
Effect on other (income) expense, net									(3,012)	2,877	1,362
As Previously Reported
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Cost of sales											5,977,348
Gross profit											1,817,677
Effect on selling and distribution											1,346,948
Effect on general and administrative											311,176
Effect on total operating costs and expenses											1,734,415
Effect on operating income											83,262
Effect on other (income) expense, net											(2,942)
Accounting Standards Update 2017-07 | Restatement Adjustment
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Cost of sales											(390)
Gross profit											390
Effect on selling and distribution											(531)
Effect on general and administrative											(3,383)
Effect on total operating costs and expenses											(3,914)
Effect on operating income											4,304
Effect on other (income) expense, net											$ 4,304
As Without Adoption of ASU 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales									6,948,368	7,240,121
Cost of sales									5,508,636	5,584,843
Gross profit									1,439,732	1,655,278
Impact of Adoption of ASU 2014-09 | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales									380,295	515,162
Cost of sales									380,295	515,162
Gross profit									$ 0	$ 0