Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities:
Net income	$ 218,284	$ 186,041
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	152,729	144,396
Stock-based compensation	19,650	17,508
Amortization included in interest expense	3,993	3,498
Gain on disposition of assets and investments	(12,221)	(7,230)
Loss on extinguishment of debt	3,198
Deferred tax (benefit) expense	(150)	9,572
Provision for doubtful accounts	5,831	4,845
(Increase) decrease in:
Receivables	(39,072)	(20,645)
Prepaid lease expenses	(21,700)	(19,758)
Other assets	5,923	(4,494)
Increase (decrease) in:
Trade accounts payable	(761)	(1,327)
Accrued expenses	(5,623)	(7,457)
Other liabilities	7,745	8,521
Net cash provided by operating activities	337,826	313,470
Cash flows from investing activities:
Acquisitions	(526,029)	(123,291)
Capital expenditures	(78,825)	(80,764)
Proceeds from disposition of assets and investments	7,753	8,369
Decrease (increase) in notes receivable	16	(28)
Net cash (used in) provided by investing activities	(597,085)	(195,714)
Cash flows from financing activities:
Cash used for purchase of treasury stock	(6,204)	(6,099)
Net proceeds from issuance of common stock	18,278	24,633
Principal payments on long-term debt	(15,015)	(11,265)
Payment on revolving credit facility	(302,000)	(155,200)
Proceeds received from revolving credit facility	408,000	235,000
Proceeds received from note offering	400,000
Payment on senior credit facility term A-1 loan	(300,000)
Proceeds received from senior credit facility term A-1 loan	300,000
Debt issuance costs	(9,391)
Distributions to non-controlling interest	(315)	(1,025)
Dividends/distributions	(219,857)	(198,721)
Net cash provided by (used in) financing activities	273,496	(112,677)
Effect of exchange rate changes in cash and cash equivalents	915	(2,036)
Net increase in cash and cash equivalents	15,152	3,043
Cash and cash equivalents at beginning of period	22,327	26,035
Cash and cash equivalents at end of period	37,479	29,078
Supplemental disclosures of cash flow information:
Cash paid for interest	91,952	77,934
Cash paid for foreign, state and federal income taxes	11,023	9,412
LAMAR MEDIA CORP [Member]
Cash flows from operating activities:
Net income	218,573	186,296
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	152,729	144,396
Stock-based compensation	19,650	17,508
Amortization included in interest expense	3,993	3,498
Gain on disposition of assets and investments	(12,221)	(7,230)
Loss on extinguishment of debt	3,198
Deferred tax (benefit) expense	(150)	9,572
Provision for doubtful accounts	5,831	4,845
(Increase) decrease in:
Receivables	(39,072)	(20,645)
Prepaid lease expenses	(21,700)	(19,758)
Other assets	5,923	(4,494)
Increase (decrease) in:
Trade accounts payable	(761)	(1,327)
Accrued expenses	(5,623)	(7,457)
Other liabilities	(16,410)	(13,462)
Net cash provided by operating activities	313,960	291,742
Cash flows from investing activities:
Acquisitions	(526,029)	(123,291)
Capital expenditures	(78,825)	(80,764)
Proceeds from disposition of assets and investments	7,753	8,369
Decrease (increase) in notes receivable	16	(28)
Net cash (used in) provided by investing activities	(597,085)	(195,714)
Cash flows from financing activities:
Principal payments on long-term debt	(15,015)	(11,265)
Payment on revolving credit facility	(302,000)	(155,200)
Proceeds received from revolving credit facility	408,000	235,000
Proceeds received from note offering	400,000
Payment on senior credit facility term A-1 loan	(300,000)
Proceeds received from senior credit facility term A-1 loan	300,000
Debt issuance costs	(9,391)
Distributions to non-controlling interest	(315)	(1,025)
Dividend to parent	(225,789)	(204,547)
Contributions from parent	41,872	46,088
Net cash provided by (used in) financing activities	297,362	(90,949)
Effect of exchange rate changes in cash and cash equivalents	915	(2,036)
Net increase in cash and cash equivalents	15,152	3,043
Cash and cash equivalents at beginning of period	21,827	25,535
Cash and cash equivalents at end of period	36,979	28,578
Supplemental disclosures of cash flow information:
Cash paid for interest	91,952	77,934
Cash paid for foreign, state and federal income taxes	$ 11,023	$ 9,412