Business Acquisitions (Narrative) (Details) (USD $)	12 Months Ended			12 Months Ended					12 Months Ended							0 Months Ended	1 Months Ended	7 Months Ended	12 Months Ended				0 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Qatarlyst [Member] Companies	Apr. 07, 2013 Qatarlyst [Member] Customer Relationships [Member]	Apr. 07, 2013 Qatarlyst [Member] Technology [Member]	Dec. 31, 2013 Qatarlyst [Member] Final Allocation [Member]	Apr. 07, 2013 Qatarlyst [Member] Final Allocation [Member]	Dec. 31, 2012 BSI, TAIMMA, FINTECHNIX, PLANETSOFT, TRISYSTEMS [Member] Companies	Dec. 31, 2012 BSI, TAIMMA, FINTECHNIX, PLANETSOFT, TRISYSTEMS [Member] Final Allocation [Member]	Dec. 31, 2012 BSI, TAIMMA, FINTECHNIX, TRISYSTEMS [Member] Customer Relationships [Member]	Dec. 31, 2012 BSI, TAIMMA, FINTECHNIX, TRISYSTEMS [Member] Technology [Member]	Dec. 31, 2012 BSI, TAIMMA, FINTECHNIX, TRISYSTEMS [Member] Trade Names [Member]	Dec. 31, 2012 BSI, TAIMMA, FINTECHNIX, TRISYSTEMS [Member] Noncompete Agreements [Member]	Dec. 31, 2012 BSI, TAIMMA, FINTECHNIX, TRISYSTEMS [Member] Final Allocation [Member]	Jun. 02, 2012 Planetsoft [Member]	Jun. 30, 2012 Planetsoft [Member]	Dec. 31, 2012 Planetsoft [Member]	Dec. 31, 2013 Planetsoft [Member]	Jun. 02, 2012 Planetsoft [Member] Customer Relationships [Member]	Jun. 02, 2012 Planetsoft [Member] Technology [Member]	Jun. 02, 2012 Planetsoft [Member] Final Allocation [Member]	Feb. 07, 2011 ADAM [Member]	Dec. 31, 2012 Facts [Member]	Jun. 02, 2012 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Planetsoft [Member]	May 31, 2012 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Planetsoft [Member]	Dec. 31, 2013 Contingent Accrued Earn-out Acquisition Consideration [Member]	Dec. 31, 2012 Contingent Accrued Earn-out Acquisition Consideration [Member]	Jun. 02, 2012 Contingent Accrued Earn-out Acquisition Consideration [Member] Planetsoft [Member]
Business Acquisition [Line Items]
Derivative Financial Instruments, Liabilities, Fair Value Disclosure	$ 14,420,000	$ 17,495,000	$ 7,590,000																								$ 14,420,000	$ 17,495,000	$ 992,000
Contingent liability for accrued earn-out acquisition consideration																											10,283,000	14,230,000
Contingent liability for accrued earn-out acquisition consideration																											4,137,000	3,265,000
Business acquisition, termination fee received for failed acquisition	971,000
Number of Businesses Acquired				1					5
Business acquisition, cost of acquired entity, cash paid				5,025,000					56,112,000							35,000,000
Business acquisition, number of common shares issued																296,560							3,650,000.00
Business acquisition, price per share																$ 16.86
Equity instruments		0		0					5,000,000							5,000,000.0
Put option, exercise period																	30 days
Put option, vesting period required prior to exercise																	2 years
Put option, price to repurchase shares																$ 16.86
Put option, price to repurchase shares, discount																	10.00%
Put option liability	0	1,186,000																							1,400,000	1,400,000
Business acquisition, purchase price allocation, goodwill	337,068,000	326,748,000	259,218,000				11,136,000	11,136,000		67,376,000					23,300,000							44,116,000
Intangible Assets, Net (Excluding Goodwill)					4,761,000	635,000					7,600,000	1,800,000	436,000	118,000						9,800,000	540,000
Fair value of equity issued in business acquisition																5,000,000							87,500,000
Business acquisition, acquiree revenue since acquisition date																		11,400,000	17,200,000
Goodwill	337,068,000	326,748,000	259,218,000				11,136,000	11,136,000		67,376,000					23,300,000							44,116,000
Payments for Previous Acquisition																								$ 25,000