Segment Financial Information (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement [Abstract]
Operating revenue	$ 311,923,000	$ 339,205,000	$ 348,201,000	$ 331,301,000	$ 334,025,000	$ 321,128,000	$ 296,543,000	$ 283,687,000	$ 1,330,630,000	$ 1,235,383,000	$ 1,010,179,000
Depreciation and amortization									127,020,000	121,784,000	108,063,000
Operating income/(loss)	21,557,000	56,469,000	47,513,000	47,337,000	46,110,000	43,491,000	46,595,000	33,776,000	172,876,000	169,972,000	36,860,000
Equity in earnings of affiliates, net of tax	3,512,000	5,717,000	9,345,000	8,787,000	6,602,000	8,166,000	11,745,000	9,470,000	27,361,000	35,983,000	30,515,000
Net income/(loss) from continuing operations									130,147,000	90,184,000	22,083,000
Capital expenditures									106,581,000	80,455,000	68,162,000
Statement of Financial Position [Abstract]
Investment in affiliates, net	95,343,000				94,227,000				95,343,000	94,227,000
Long-lived assets	2,361,741,000				2,283,558,000				2,361,741,000	2,283,558,000
Total assets	3,003,355,000				3,030,328,000				3,003,355,000	3,030,328,000
Segment Reporting Information, Assets (Excluding Discontinued Operations Assets)	2,865,332,000				2,822,693,000				2,865,332,000	2,822,693,000
Domestic Country [Member]
Income Statement [Abstract]
Operating revenue									1,228,713,000	1,144,084,000	911,306,000
Statement of Financial Position [Abstract]
Long-lived assets	2,048,007,000				1,932,338,000				2,048,007,000	1,932,338,000
Foreign Country [Member]
Income Statement [Abstract]
Operating revenue									101,917,000	91,299,000	98,873,000
Statement of Financial Position [Abstract]
Long-lived assets	313,734,000				351,220,000				313,734,000	351,220,000
Data and Analytics [Member]
Segment Reporting Information [Line Items]
Segment Reporting Intercompany Revenue									8,600,000	10,200,000	9,300,000
Segment Reporting Intercompany Expense									2,100,000	(1,800,000)	(5,000,000)
Income Statement [Abstract]
Operating revenue									591,204,000	567,687,000	515,767,000
Depreciation and amortization									77,051,000	72,262,000	67,147,000
Operating income/(loss)									107,112,000	101,770,000	67,938,000
Equity in earnings of affiliates, net of tax									1,630,000	2,197,000	1,513,000
Net income/(loss) from continuing operations									116,291,000	104,902,000	68,265,000
Capital expenditures									55,333,000	54,845,000	43,506,000
Statement of Financial Position [Abstract]
Investment in affiliates, net	9,460,000				14,206,000				9,460,000	14,206,000
Long-lived assets	1,189,357,000				1,229,973,000				1,189,357,000	1,229,973,000
Total assets	1,325,253,000				1,375,775,000				1,325,253,000	1,375,775,000
Data and Analytics [Member] | Domestic Country [Member]
Income Statement [Abstract]
Operating revenue									490,245,000	477,268,000	458,438,000
Statement of Financial Position [Abstract]
Long-lived assets	875,626,000				878,783,000				875,626,000	878,783,000
Data and Analytics [Member] | Foreign Country [Member]
Income Statement [Abstract]
Operating revenue									100,959,000	90,419,000	57,329,000
Statement of Financial Position [Abstract]
Long-lived assets	313,731,000				351,190,000				313,731,000	351,190,000
Technology and Processing Solutions [Member]
Segment Reporting Information [Line Items]
Segment Reporting Intercompany Revenue									1,800,000	1,100,000	5,400,000
Segment Reporting Intercompany Expense									(7,800,000)	(9,400,000)	(8,700,000)
Income Statement [Abstract]
Operating revenue									749,822,000	679,860,000	509,455,000
Depreciation and amortization									28,601,000	26,143,000	22,592,000
Operating income/(loss)									166,688,000	178,625,000	78,816,000
Equity in earnings of affiliates, net of tax									41,639,000	55,571,000	47,673,000
Net income/(loss) from continuing operations									209,040,000	233,868,000	127,864,000
Capital expenditures									18,792,000	14,739,000	12,528,000
Statement of Financial Position [Abstract]
Investment in affiliates, net	78,289,000				72,977,000				78,289,000	72,977,000
Long-lived assets	1,037,900,000				876,765,000				1,037,900,000	876,765,000
Total assets	1,139,420,000				1,000,382,000				1,139,420,000	1,000,382,000
Technology and Processing Solutions [Member] | Domestic Country [Member]
Income Statement [Abstract]
Operating revenue									749,495,000	679,620,000	509,215,000
Statement of Financial Position [Abstract]
Long-lived assets	1,037,897,000				876,761,000				1,037,897,000	876,761,000
Technology and Processing Solutions [Member] | Foreign Country [Member]
Income Statement [Abstract]
Operating revenue									327,000	240,000	239,000
Statement of Financial Position [Abstract]
Long-lived assets	3,000				4,000				3,000	4,000
Corporate Segment [Member]
Income Statement [Abstract]
Operating revenue									631,000	640,000	38,814,000
Depreciation and amortization									21,368,000	23,514,000	19,163,000
Operating income/(loss)									(100,924,000)	(110,560,000)	(110,734,000)
Equity in earnings of affiliates, net of tax									(15,908,000)	(21,785,000)	(18,671,000)
Net income/(loss) from continuing operations									(195,184,000)	(248,723,000)	(174,886,000)
Capital expenditures									32,456,000	10,871,000	12,128,000
Statement of Financial Position [Abstract]
Investment in affiliates, net	7,594,000				7,044,000				7,594,000	7,044,000
Long-lived assets	4,232,718,000				4,068,246,000				4,232,718,000	4,068,246,000
Total assets	4,498,940,000				4,338,400,000				4,498,940,000	4,338,400,000
Corporate Segment [Member] | Domestic Country [Member]
Income Statement [Abstract]
Operating revenue									0	0	(2,491,000)
Statement of Financial Position [Abstract]
Long-lived assets	3,486,778,000				3,451,958,000				3,486,778,000	3,451,958,000
Corporate Segment [Member] | Foreign Country [Member]
Income Statement [Abstract]
Operating revenue									631,000	640,000	41,305,000
Statement of Financial Position [Abstract]
Long-lived assets	745,940,000				616,288,000				745,940,000	616,288,000
Eliminations [Member]
Income Statement [Abstract]
Operating revenue									(11,027,000)	(12,804,000)	(53,857,000)
Depreciation and amortization									0	(135,000)	(839,000)
Operating income/(loss)									0	137,000	840,000
Equity in earnings of affiliates, net of tax									0	0	0
Net income/(loss) from continuing operations									0	137,000	840,000
Capital expenditures									0	0	0
Statement of Financial Position [Abstract]
Investment in affiliates, net	0				0				0	0
Long-lived assets	(4,098,234,000)				(3,891,426,000)				(4,098,234,000)	(3,891,426,000)
Total assets	(4,098,281,000)				(3,891,864,000)				(4,098,281,000)	(3,891,864,000)
Eliminations [Member] | Domestic Country [Member]
Income Statement [Abstract]
Operating revenue									(11,027,000)	(12,804,000)	(53,856,000)
Statement of Financial Position [Abstract]
Long-lived assets	(3,352,294,000)				(3,275,164,000)				(3,352,294,000)	(3,275,164,000)
Eliminations [Member] | Foreign Country [Member]
Income Statement [Abstract]
Operating revenue									0	0	0
Statement of Financial Position [Abstract]
Long-lived assets	$ (745,940,000)				$ (616,262,000)				$ (745,940,000)	$ (616,262,000)