Papa John's Marketing Fund, Inc. (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Dec. 30, 2018
Current assets:
Cash and cash equivalents	$ 29,273		$ 33,258
Accounts receivable, net	80,748		78,118
Income tax receivable	5,431		16,146
Prepaid expenses	22,488	$ 25,707	30,376
Other current assets	18,582		5,678
Total current assets	199,414		196,277
Deferred income taxes, net	1,244		1,137
Total assets	739,068		595,897
Current liabilities:
Accounts payable	35,214		27,106
Accrued expenses and other current liabilities	120,975		129,167
Deferred revenue current	2,516		2,598
Current portion of long-term debt	29,982		20,009
Total current liabilities	218,569		185,470
Deferred revenue	18,562		20,674
Total liabilities	795,677		894,446
Papa John's Marketing Fund Inc.
Current assets:
Cash and cash equivalents	5,013		13,790
Accounts receivable, net	10,243		10,264
Income tax receivable	66		73
Prepaid expenses	69		441
Other current assets	14,124		1
Total current assets	29,515		24,569
Deferred income taxes, net	381		381
Total assets	29,896		24,950
Current liabilities:
Accounts payable	8,423		20
Accrued expenses and other current liabilities	11,537		23,455
Deferred revenue current	97		155
Current portion of long-term debt	9,982		9
Total current liabilities	30,039		23,639
Deferred revenue	4,744		5,995
Total liabilities	$ 34,783		$ 29,634