Selected Consolidated Financial Statements of Parent, Guarantors, Canada Company and Non-Guarantors - Statements of Cash Flows (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Cash Flows from Operating Activities:    
Cash Flows from Operating Activities—Continuing Operations $ 5,512 $ 55,641
Cash Flows from Investing Activities:    
Capital expenditures (74,776) (107,856)
Cash paid for acquisitions, net of cash acquired (6,431) (30,781)
Intercompany loans to subsidiaries 0 0
Investment in subsidiaries 0 0
Increase in restricted cash 13,860 0
Additions to customer relationship and acquisition costs (9,243) (8,158)
Proceeds from sales of property and equipment and other, net (including real estate) 410 17,892
Cash Flows from Investing Activities—Continuing Operations (76,180) (128,903)
Cash Flows from Financing Activities:    
Repayment of revolving credit and term loan facilities and other debt (2,282,261) (2,454,691)
Proceeds from revolving credit and term loan facilities and other debt 2,450,403 2,876,047
Early retirement of senior subordinated notes 0 (247,275)
Debt (repayment to) financing and equity (distribution to) contribution from noncontrolling interests, net (388) (2,317)
Intercompany loans from parent 0 0
Equity contribution from parent 0 0
Parent cash dividends (102,539) (52,735)
Proceeds from exercise of stock options and employee stock purchase plan 4,364 2,417
Excess tax (deficiency) benefit from stock-based compensation 231 (185)
Payment of debt financing and stock issuance costs (947) (422)
Cash Flows from Financing Activities—Continuing Operations 68,863 120,839
Effect of exchange rates on cash and cash equivalents (4,523) 1,803
(Decrease) Increase in cash and cash equivalents (6,328) 49,380
Cash and cash equivalents, beginning of period 125,933 120,526
Cash and cash equivalents, end of period 119,605 169,906
Eliminations    
Cash Flows from Operating Activities:    
Cash Flows from Operating Activities—Continuing Operations 0 0
Cash Flows from Investing Activities:    
Capital expenditures 0 0
Cash paid for acquisitions, net of cash acquired 0 0
Intercompany loans to subsidiaries (212,638) (439,097)
Investment in subsidiaries 10,000 23,390
Increase in restricted cash 0  
Additions to customer relationship and acquisition costs 0 0
Proceeds from sales of property and equipment and other, net (including real estate) 0 0
Cash Flows from Investing Activities—Continuing Operations (202,638) (415,707)
Cash Flows from Financing Activities:    
Repayment of revolving credit and term loan facilities and other debt 0 0
Proceeds from revolving credit and term loan facilities and other debt 0 0
Early retirement of senior subordinated notes   0
Debt (repayment to) financing and equity (distribution to) contribution from noncontrolling interests, net 0 0
Intercompany loans from parent 212,638 439,097
Equity contribution from parent (10,000) (23,390)
Parent cash dividends 0 0
Proceeds from exercise of stock options and employee stock purchase plan 0 0
Excess tax (deficiency) benefit from stock-based compensation 0 0
Payment of debt financing and stock issuance costs 0 0
Cash Flows from Financing Activities—Continuing Operations 202,638 415,707
Effect of exchange rates on cash and cash equivalents 0 0
(Decrease) Increase in cash and cash equivalents 0 0
Cash and cash equivalents, beginning of period 0 0
Cash and cash equivalents, end of period 0 0
Parent | Reportable legal entities    
Cash Flows from Operating Activities:    
Cash Flows from Operating Activities—Continuing Operations (45,978) (68,972)
Cash Flows from Investing Activities:    
Capital expenditures 0 0
Cash paid for acquisitions, net of cash acquired 0 0
Intercompany loans to subsidiaries 132,692 377,202
Investment in subsidiaries (5,000) (11,695)
Increase in restricted cash 13,860  
Additions to customer relationship and acquisition costs 0 0
Proceeds from sales of property and equipment and other, net (including real estate) 0 0
Cash Flows from Investing Activities—Continuing Operations 141,552 365,507
Cash Flows from Financing Activities:    
Repayment of revolving credit and term loan facilities and other debt 0 0
Proceeds from revolving credit and term loan facilities and other debt 0 0
Early retirement of senior subordinated notes   (247,275)
Debt (repayment to) financing and equity (distribution to) contribution from noncontrolling interests, net 0 0
Intercompany loans from parent 0 0
Equity contribution from parent 0 0
Parent cash dividends (102,539) (52,735)
Proceeds from exercise of stock options and employee stock purchase plan 4,364 2,417
Excess tax (deficiency) benefit from stock-based compensation 231 (185)
Payment of debt financing and stock issuance costs (29) 0
Cash Flows from Financing Activities—Continuing Operations (97,973) (297,778)
Effect of exchange rates on cash and cash equivalents 0 0
(Decrease) Increase in cash and cash equivalents (2,399) (1,243)
Cash and cash equivalents, beginning of period 2,399 1,243
Cash and cash equivalents, end of period 0 0
Guarantors | Reportable legal entities    
Cash Flows from Operating Activities:    
Cash Flows from Operating Activities—Continuing Operations 44,864 79,555
Cash Flows from Investing Activities:    
Capital expenditures (46,452) (71,520)
Cash paid for acquisitions, net of cash acquired (684) 916
Intercompany loans to subsidiaries 79,946 61,895
Investment in subsidiaries (5,000) (11,695)
Increase in restricted cash 0  
Additions to customer relationship and acquisition costs (7,990) (7,341)
Proceeds from sales of property and equipment and other, net (including real estate) 160 1,441
Cash Flows from Investing Activities—Continuing Operations 19,980 (26,304)
Cash Flows from Financing Activities:    
Repayment of revolving credit and term loan facilities and other debt (1,894,836) (2,171,941)
Proceeds from revolving credit and term loan facilities and other debt 1,823,900 2,480,901
Early retirement of senior subordinated notes   0
Debt (repayment to) financing and equity (distribution to) contribution from noncontrolling interests, net 0 0
Intercompany loans from parent 4,638 (376,788)
Equity contribution from parent 5,000 11,695
Parent cash dividends 0 0
Proceeds from exercise of stock options and employee stock purchase plan 0 0
Excess tax (deficiency) benefit from stock-based compensation 0 0
Payment of debt financing and stock issuance costs (864) 0
Cash Flows from Financing Activities—Continuing Operations (62,162) (56,133)
Effect of exchange rates on cash and cash equivalents 0 0
(Decrease) Increase in cash and cash equivalents 2,682 (2,882)
Cash and cash equivalents, beginning of period 4,713 10,366
Cash and cash equivalents, end of period 7,395 7,484
Canada Company | Reportable legal entities    
Cash Flows from Operating Activities:    
Cash Flows from Operating Activities—Continuing Operations 3,636 10,421
Cash Flows from Investing Activities:    
Capital expenditures (3,774) (2,865)
Cash paid for acquisitions, net of cash acquired 106 0
Intercompany loans to subsidiaries 0 0
Investment in subsidiaries 0 0
Increase in restricted cash 0  
Additions to customer relationship and acquisition costs (668) (280)
Proceeds from sales of property and equipment and other, net (including real estate) 6 64
Cash Flows from Investing Activities—Continuing Operations (4,330) (3,081)
Cash Flows from Financing Activities:    
Repayment of revolving credit and term loan facilities and other debt (159,145) (252,107)
Proceeds from revolving credit and term loan facilities and other debt 161,962 242,480
Early retirement of senior subordinated notes   0
Debt (repayment to) financing and equity (distribution to) contribution from noncontrolling interests, net 0 0
Intercompany loans from parent 79 8,640
Equity contribution from parent 0 0
Parent cash dividends 0 0
Proceeds from exercise of stock options and employee stock purchase plan 0 0
Excess tax (deficiency) benefit from stock-based compensation 0 0
Payment of debt financing and stock issuance costs 0 (12)
Cash Flows from Financing Activities—Continuing Operations 2,896 (999)
Effect of exchange rates on cash and cash equivalents (61) 136
(Decrease) Increase in cash and cash equivalents 2,141 6,477
Cash and cash equivalents, beginning of period 4,979 1,094
Cash and cash equivalents, end of period 7,120 7,571
Non-Guarantors | Reportable legal entities    
Cash Flows from Operating Activities:    
Cash Flows from Operating Activities—Continuing Operations 2,990 34,637
Cash Flows from Investing Activities:    
Capital expenditures (24,550) (33,471)
Cash paid for acquisitions, net of cash acquired (5,853) (31,697)
Intercompany loans to subsidiaries 0 0
Investment in subsidiaries 0 0
Increase in restricted cash 0  
Additions to customer relationship and acquisition costs (585) (537)
Proceeds from sales of property and equipment and other, net (including real estate) 244 16,387
Cash Flows from Investing Activities—Continuing Operations (30,744) (49,318)
Cash Flows from Financing Activities:    
Repayment of revolving credit and term loan facilities and other debt (228,280) (30,643)
Proceeds from revolving credit and term loan facilities and other debt 464,541 152,666
Early retirement of senior subordinated notes   0
Debt (repayment to) financing and equity (distribution to) contribution from noncontrolling interests, net (388) (2,317)
Intercompany loans from parent (217,355) (70,949)
Equity contribution from parent 5,000 11,695
Parent cash dividends 0 0
Proceeds from exercise of stock options and employee stock purchase plan 0 0
Excess tax (deficiency) benefit from stock-based compensation 0 0
Payment of debt financing and stock issuance costs (54) (410)
Cash Flows from Financing Activities—Continuing Operations 23,464 60,042
Effect of exchange rates on cash and cash equivalents (4,462) 1,667
(Decrease) Increase in cash and cash equivalents (8,752) 47,028
Cash and cash equivalents, beginning of period 113,842 107,823
Cash and cash equivalents, end of period $ 105,090 $ 154,851