2013 | 2012 | ||||||
Pension and postretirement benefits liability | $ | 29,290 | 34,076 | ||||
Capital lease obligations | 9,195 | 11,742 | |||||
Asset retirement obligations | 6,773 | 3,424 | |||||
Retained acquisition contingencies | 4,613 | 4,931 | |||||
Acquired contract obligations | 3,755 | 10,949 | |||||
| Other | 5,083 | 5,681 | |||||
| Total | $ | 58,709 | 70,803 | ||||